CVE-2024-42313: linux kernel Use-After-Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: media: venus: fix use after free in vdec_close There appears to be a possible use after free with vdec_close(). The firmware will add buffer release work to the work queue through HFI callbacks as a normal part of decoding. Randomly closing the decoder device from userspace during normal decoding can incur a read after free for inst. Fix it by cancelling the work in vdec_close.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.13 — 4.19.320
linux	linux_kernel	4.20 — 5.4.282
linux	linux_kernel	5.5 — 5.10.224
linux	linux_kernel	5.11 — 5.15.165
linux	linux_kernel	5.16 — 6.1.103
linux	linux_kernel	6.2 — 6.6.44
linux	linux_kernel	6.7 — 6.10.3

References

Advisories & Patches

https://git.kernel.org/stable/c/4c9d235630d35db762b85a4149bbb0be9d504c36 https://git.kernel.org/stable/c/66fa52edd32cdbb675f0803b3c4da10ea19b6635 https://git.kernel.org/stable/c/6a96041659e834dc0b172dda4b2df512d63920c2 https://git.kernel.org/stable/c/72aff311194c8ceda934f24fd6f250b8827d7567 https://git.kernel.org/stable/c/a0157b5aa34eb43ec4c5510f9c260bbb03be937e https://git.kernel.org/stable/c/ad8cf035baf29467158e0550c7a42b7bb43d1db6 https://git.kernel.org/stable/c/da55685247f409bf7f976cc66ba2104df75d8dad https://git.kernel.org/stable/c/f8e9a63b982a8345470c225679af4ba86e4a7282

Other References

https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-42313? +

In the Linux kernel, the following vulnerability has been resolved: media: venus: fix use after free in vdec_close There appears to be a possible use after free with vdec_close(). The firmware will add buffer release work to the work queue through HFI callbacks as a normal part of decoding. Randomly closing the decoder device from userspace during normal decoding can incur a read after free for inst. Fix it by cancelling the work in vdec_close. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-42313? +

CVE-2024-42313 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-42313? +

CVE-2024-42313 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42313? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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