7.8
High
CVE-2023-3776 A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel 2.6 | 2.6 → < 6.5 | 6.5 |
References
- git.kernel.org git.kernel.org
- kernel.dance kernel.dance
- www.debian.org www.debian.org
- www.debian.org www.debian.org
- packetstormsecurity.com packetstormsecurity.com
- lists.debian.org lists.debian.org
- packetstormsecurity.com packetstormsecurity.com
- lists.debian.org lists.debian.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified
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