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CVE-2023-3776 Detail

Description

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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 
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 
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 
https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f 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/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://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://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-5480 Third Party Advisory 
https://www.debian.org/security/2023/dsa-5492 Third Party Advisory 
https://www.debian.org/security/2023/dsa-5492 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST   Google Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-3776
NVD Published Date:
07/21/2023
NVD Last Modified:
11/21/2024
Source:
Google Inc.