CVE-2023-3609

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
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
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc Mailing List Patch Vendor Advisory
https://kernel.dance/04c55383fa5689357bcdd2c8036725a55ed632bc 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
https://security.netapp.com/advisory/ntap-20230818-0005/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 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
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc Mailing List Patch Vendor Advisory
https://kernel.dance/04c55383fa5689357bcdd2c8036725a55ed632bc 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
https://security.netapp.com/advisory/ntap-20230818-0005/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc6:*:*:*:*:*:*

Configuration 2 (hide)

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

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_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. (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.

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