CVE-2023-4911

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHBA-2024:2413	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5453	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5454	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5455	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5476	Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0033	Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4911	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2238352	Issue Tracking Patch
https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt	Exploit Third Party Advisory
https://www.qualys.com/cve-2023-4911/	Third Party Advisory
http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html	Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html	Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2023/Oct/11	Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/10/03/2	Exploit Mailing List
http://www.openwall.com/lists/oss-security/2023/10/03/3	Mailing List
http://www.openwall.com/lists/oss-security/2023/10/05/1	Mailing List
http://www.openwall.com/lists/oss-security/2023/10/13/11	Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/3	Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/5	Mailing List
http://www.openwall.com/lists/oss-security/2023/10/14/6	Mailing List
https://access.redhat.com/errata/RHSA-2023:5453	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5454	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5455	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:5476	Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:0033	Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4911	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2238352	Issue Tracking Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/	Mailing List
https://security.gentoo.org/glsa/202310-03	Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0006/	Third Party Advisory
https://www.debian.org/security/2023/dsa-5514	Mailing List
https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt	Exploit Third Party Advisory
https://www.qualys.com/cve-2023-4911/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:37:::::::*
	cpe:2.3:o:fedoraproject:fedora:38:::::::*
	cpe:2.3:o:fedoraproject:fedora:39:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:redhat:codeready_linux_builder:9.0:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_eus:8.6:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_eus:9.2:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_eus:9.4:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:9.0_aarch64:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.6:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:9.2_aarch64:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:9.4_aarch64:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:9.0_s390x:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.6:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.2_s390x:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.4_s390x:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian:9.0_ppc64le:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.6:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:9.2_ppc64le:::::::*
	cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:9.4_ppc64le:::::::*
	cpe:2.3:a:redhat:virtualization:4.0:::::::*
	cpe:2.3:a:redhat:virtualization_host:4.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:9.2:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:9.4:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.0_aarch64:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6_aarch64:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.2_aarch64:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.4_aarch64:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.2_s390x:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.4_s390x:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:8.6_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.0_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.2_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.4_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:9.2:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:9.4:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.2_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.4_ppc64le:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:22.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:23.04:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*
	cpe:2.3:o:debian:debian_linux:12.0:::::::*

Configuration 5 (hide)

AND

cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND

cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND

cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND

cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*

Configuration 10 (hide)

cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

History

06 May 2025, 21:02

Type	Values Removed	Values Added
References	~~() https://access.redhat.com/errata/RHBA-2024:2413 -~~	() https://access.redhat.com/errata/RHBA-2024:2413 - Third Party Advisory

30 Apr 2025, 20:15

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHBA-2024:2413 -

27 Jan 2025, 21:45

21 Nov 2024, 08:36

Type	Values Removed	Values Added
References		() http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html - () http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html - () http://seclists.org/fulldisclosure/2023/Oct/11 - () http://www.openwall.com/lists/oss-security/2023/10/03/2 - () http://www.openwall.com/lists/oss-security/2023/10/03/3 - () http://www.openwall.com/lists/oss-security/2023/10/05/1 - () http://www.openwall.com/lists/oss-security/2023/10/13/11 - () http://www.openwall.com/lists/oss-security/2023/10/14/3 - () http://www.openwall.com/lists/oss-security/2023/10/14/5 - () http://www.openwall.com/lists/oss-security/2023/10/14/6 - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ - () https://security.gentoo.org/glsa/202310-03 - () https://security.netapp.com/advisory/ntap-20231013-0006/ - () https://www.debian.org/security/2023/dsa-5514 -
References	~~() https://access.redhat.com/errata/RHSA-2023:5453 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2023:5453 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2023:5454 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2023:5454 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2023:5455 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2023:5455 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2023:5476 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2023:5476 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2024:0033 - Third Party Advisory~~	() https://access.redhat.com/errata/RHSA-2024:0033 - Third Party Advisory
References	~~() https://access.redhat.com/security/cve/CVE-2023-4911 - Mitigation, Third Party Advisory~~	() https://access.redhat.com/security/cve/CVE-2023-4911 - Mitigation, Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2238352 - Issue Tracking, Patch, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2238352 - Issue Tracking, Patch, Third Party Advisory
References	~~() https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt - Exploit, Third Party Advisory~~	() https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt - Exploit, Third Party Advisory
References	~~() https://www.qualys.com/cve-2023-4911/ - Third Party Advisory~~	() https://www.qualys.com/cve-2023-4911/ - Third Party Advisory

17 Sep 2024, 19:46

Type	Values Removed	Values Added
CPE		cpe:2.3:o:debian:debian_linux:13.0:::::::* cpe:2.3:o:debian:debian_linux:12.0:::::::* cpe:2.3:o:canonical:ubuntu_linux:23.04:::::::* cpe:2.3:o:canonical:ubuntu_linux:22.04::::lts:::
First Time		Canonical ubuntu Linux Debian debian Linux Debian Canonical
References	~~() https://access.redhat.com/security/cve/CVE-2023-4911 - Third Party Advisory~~	() https://access.redhat.com/security/cve/CVE-2023-4911 - Mitigation, Third Party Advisory
References	~~() https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt - Exploit~~	() https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt - Exploit, Third Party Advisory

16 Sep 2024, 14:15

Type	Values Removed	Values Added
References	~~{'url': 'http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html', 'tags': ['Exploit', 'Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html', 'tags': ['Exploit', 'Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://seclists.org/fulldisclosure/2023/Oct/11', 'tags': ['Exploit', 'Mailing List', 'Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/03/2', 'tags': ['Exploit', 'Mailing List'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/03/3', 'tags': ['Mailing List', 'Patch'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/05/1', 'tags': ['Mailing List', 'Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/13/11', 'tags': ['Mailing List'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/14/3', 'tags': ['Mailing List'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/14/5', 'tags': ['Mailing List'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'http://www.openwall.com/lists/oss-security/2023/10/14/6', 'tags': ['Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/', 'tags': ['Mailing List'], 'source': 'secalert@redhat.com'}~~ {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/', 'tags': ['Exploit', 'Mailing List'], 'source': 'secalert@redhat.com'} ~~{'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/', 'tags': ['Mailing List'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'https://security.gentoo.org/glsa/202310-03', 'tags': ['Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'https://security.netapp.com/advisory/ntap-20231013-0006/', 'tags': ['Mailing List', 'Third Party Advisory'], 'source': 'secalert@redhat.com'}~~ ~~{'url': 'https://www.debian.org/security/2023/dsa-5514', 'tags': ['Third Party Advisory'], 'source': 'secalert@redhat.com'}~~

22 Feb 2024, 20:18

Type	Values Removed	Values Added
References	~~() http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html -~~	() http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html - Exploit, Third Party Advisory
References	~~() http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html -~~	() http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html - Exploit, Third Party Advisory
References	~~() http://seclists.org/fulldisclosure/2023/Oct/11 -~~	() http://seclists.org/fulldisclosure/2023/Oct/11 - Exploit, Mailing List, Third Party Advisory
References	~~() http://www.openwall.com/lists/oss-security/2023/10/13/11 -~~	() http://www.openwall.com/lists/oss-security/2023/10/13/11 - Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2023/10/14/3 -~~	() http://www.openwall.com/lists/oss-security/2023/10/14/3 - Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2023/10/14/5 -~~	() http://www.openwall.com/lists/oss-security/2023/10/14/5 - Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2023/10/14/6 -~~	() http://www.openwall.com/lists/oss-security/2023/10/14/6 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2023:5476 -~~	() https://access.redhat.com/errata/RHSA-2023:5476 - Third Party Advisory
References	~~() https://access.redhat.com/errata/RHSA-2024:0033 -~~	() https://access.redhat.com/errata/RHSA-2024:0033 - Third Party Advisory
References	~~() https://security.netapp.com/advisory/ntap-20231013-0006/ -~~	() https://security.netapp.com/advisory/ntap-20231013-0006/ - Mailing List, Third Party Advisory
First Time		Redhat codeready Linux Builder Eus Redhat virtualization Host Redhat codeready Linux Builder For Arm64 Eus Redhat enterprise Linux For Power Big Endian Eus Redhat enterprise Linux For Ibm Z Systems Eus S390x Redhat enterprise Linux Server Tus Redhat codeready Linux Builder For Ibm Z Systems Eus Redhat codeready Linux Builder For Power Little Endian Eus Redhat enterprise Linux For Arm 64 Eus Redhat enterprise Linux Server Aus Redhat enterprise Linux Eus
CPE	cpe:2.3:a:gnu:glibc:-:::::::*	cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6_aarch64:::::::* cpe:2.3:a:gnu:glibc:::::::: cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:8.6_ppc64le:::::::* cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.6:::::::* cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::* cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::* cpe:2.3:a:redhat:codeready_linux_builder_eus:8.6:::::::* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.6:::::::* cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.6:::::::* cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.6:::::::* cpe:2.3:a:redhat:virtualization_host:4.0:::::::*

03 Jan 2024, 15:15

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2024:0033 -

21 Dec 2023, 15:15

Type	Values Removed	Values Added
References		() http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html -

Information

Published : 2023-10-03 18:15

Updated : 2025-05-06 21:02

NVD link : CVE-2023-4911

Mitre link : CVE-2023-4911

CVE.ORG link : CVE-2023-4911

JSON object : View

Products Affected

redhat

enterprise_linux_server_aus
virtualization_host
enterprise_linux_for_ibm_z_systems_eus_s390x
enterprise_linux_server_tus
codeready_linux_builder_for_power_little_endian_eus
enterprise_linux_for_ibm_z_systems
enterprise_linux_for_arm_64
codeready_linux_builder_for_power_little_endian
codeready_linux_builder_eus
codeready_linux_builder_for_ibm_z_systems_eus
enterprise_linux
virtualization
enterprise_linux_for_arm_64_eus
enterprise_linux_for_power_little_endian
codeready_linux_builder
enterprise_linux_for_power_little_endian_eus
codeready_linux_builder_for_arm64_eus
enterprise_linux_for_power_big_endian_eus
codeready_linux_builder_for_ibm_z_systems
codeready_linux_builder_for_arm64
enterprise_linux_eus
enterprise_linux_for_ibm_z_systems_eus
enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions

netapp

h300s
h300s_firmware
h410s_firmware
h500s
h500s_firmware
h700s
h410s
h410c_firmware
h700s_firmware
h410c
ontap_select_deploy_administration_utility

gnu

glibc

fedoraproject

fedora

debian

debian_linux

canonical

ubuntu_linux

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

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"2023-10-03T18:15:10.463", "references": [{"url": "https://access.redhat.com/errata/RHBA-2024:2413", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2023:5453", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2023:5454", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2023:5455", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2023:5476", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2024:0033", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2023-4911", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238352", "tags": ["Issue Tracking", "Patch"], "source": "secalert@redhat.com"}, {"url": "https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt", "tags": ["Exploit", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.qualys.com/cve-2023-4911/", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2023/Oct/11", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": 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"Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/202310-03", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20231013-0006/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2023/dsa-5514", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.qualys.com/cve-2023-4911/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-122"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges."}, {"lang": "es", "value": "Se descubri\u00f3 un desbordamiento del b\u00fafer en el cargador din\u00e1mico ld.so de la librer\u00eda GNU C mientras se procesaba la variable de entorno GLIBC_TUNABLES. Este problema podr\u00eda permitir que un atacante local utilice variables de entorno GLIBC_TUNABLES manipuladas con fines malintencionados al iniciar archivos binarios con permiso SUID para ejecutar c\u00f3digo con privilegios elevados."}], "lastModified": "2025-05-06T21:02:34.223", "cisaActionDue": "2023-12-12", "cisaExploitAdd": "2023-11-21", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "71609239-5262-473E-ACCE-18AE51AB184E", "versionEndExcluding": "2.39", "versionStartIncluding": "2.34"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC559B26-5DFC-4B7A-A27C-B77DE755DFF9"}, {"criteria": 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7.8 /10