CVE-2023-3776

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-3776
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

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
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html Third Party Advisory VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f Mailing List Patch Vendor Advisory
https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20240202-0003/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 Third Party Advisory
https://www.debian.org/security/2023/dsa-5492 Third Party Advisory
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html Third Party Advisory VDB Entry
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f Mailing List Patch Vendor Advisory
https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20240202-0003/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 Third Party Advisory
https://www.debian.org/security/2023/dsa-5492 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
History

13 Feb 2025, 17:16

Type Values Removed Values Added
Summary (en) A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f. (en) A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

21 Nov 2024, 08:18

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html - Third Party Advisory, VDB Entry
References () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry
References () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f - Mailing List, Patch, Vendor Advisory () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f - Mailing List, Patch, Vendor Advisory
References () https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f - Patch, Vendor Advisory () https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f - Patch, Vendor Advisory
References () https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Mailing List, Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20240202-0003/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20240202-0003/ - Third Party Advisory
References () https://www.debian.org/security/2023/dsa-5480 - Third Party Advisory () https://www.debian.org/security/2023/dsa-5480 - Third Party Advisory
References () https://www.debian.org/security/2023/dsa-5492 - Third Party Advisory () https://www.debian.org/security/2023/dsa-5492 - Third Party Advisory

22 Aug 2024, 20:24

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - Third Party Advisory, VDB Entry
References () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html - Mailing List, Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20240202-0003/ - () https://security.netapp.com/advisory/ntap-20240202-0003/ - Third Party Advisory

02 Feb 2024, 14:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20240202-0003/ -

11 Jan 2024, 19:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html -

29 Nov 2023, 15:15

Type Values Removed Values Added
References
  • () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html -
Information

Published : 2023-07-21 21:15

Updated : 2025-02-13 17:16

NVD link : CVE-2023-3776

Mitre link : CVE-2023-3776

CVE.ORG link : CVE-2023-3776

JSON object : View

Products Affected

linux

  • linux_kernel

debian

  • debian_linux
CWE
CWE-416

Use After Free