CVE-2023-4208 is a use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component, affecting Debian and Linux kernel versions. This flaw allows a local attacker to achieve privilege escalation by manipulating filter updates, leading to a use-after-free condition. Rated 7.8 HIGH, it has a low attack complexity and no user interaction required, potentially resulting in high impact to confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in the KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.18, < 6.5CPE match | cpe:2.3:a:linux:kernel:*:*:*:*:*:*:*:* | ||
>= 3.18, < 4.14.322CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.15, < 4.19.291CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 4.20, < 5.4.253CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.5, < 5.10.190CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.