CVE-2023-3776
CVSS V2 None
CVSS V3 None
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.
Overview
- CVE ID
- CVE-2023-3776
- Assigner
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-07-21T20:49:53.667Z
- Last Modified Date
- 2023-07-22T09:43:27.743Z
Weakness Enumerations
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-3776 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3776 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-24 21:21:42 | Added to TrackCVE |