A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation.
If tcf_change_indev() fails, u32_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 04c55383fa5689357bcdd2c8036725a55ed632bc.
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
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_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_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 04c55383fa5689357bcdd2c8036725a55ed632bc. |
21 Nov 2024, 08:17
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 | |
References | () http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html - | |
References | () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc - Mailing List, Patch, Vendor Advisory | |
References | () https://kernel.dance/04c55383fa5689357bcdd2c8036725a55ed632bc - Vendor Advisory | |
References | () 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 - | |
References | () https://security.netapp.com/advisory/ntap-20230818-0005/ - Third Party Advisory | |
References | () https://www.debian.org/security/2023/dsa-5480 - Third Party Advisory |
11 Jan 2024, 19:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
29 Nov 2023, 15:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
Information
Published : 2023-07-21 21:15
Updated : 2025-02-13 17:16
NVD link : CVE-2023-3609
Mitre link : CVE-2023-3609
CVE.ORG link : CVE-2023-3609
JSON object : View
Products Affected
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-416
Use After Free