🛡️ CVE-2022-3635 — debian-linux

🟡 CVSS 5.5 — Medium ⚠️ Exploit Public CWE-119 NVD

5.5

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. VDB-211934 is the identifier assigned to this vulnerability.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Weakness class

CVE-2022-3635 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2022-3635 is recorded against 2 packages.

debian-linux
linux-kernel (from 5.16 up to 5.19.4)

Timeline and source

Published on 21 October 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org
lists.debian.org
vuldb.com
git.kernel.org
lists.debian.org
vuldb.com

CVE-2022-3635 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity MEDIUM

CVSS Score 5.5

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

CWE CWE-119

Public Exploit ⚠️ Yes

Source NVD

Published 2022-10-21

Updated 2026-08-20

Modified 2026-06-17

Fix URL https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git/commit/?id=3f4093e2bf4673f218c0bf17d8362337c400e77b

Affected Packages

Software	From version	Fixed in
debian-linux	—	—
linux-kernel	5.16	5.19.4

References

Exploit, Mailing List, Patch, Vendor Advisory https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git/commit/?id=3f4093e2bf4673f218c0bf17d8362337c400e77b

Mailing List, Third Party Advisory https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Third Party Advisory https://vuldb.com/?id.211934

Exploit, Mailing List, Patch, Vendor Advisory https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git/commit/?id=3f4093e2bf4673f218c0bf17d8362337c400e77b

Mailing List, Third Party Advisory https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Third Party Advisory https://vuldb.com/?id.211934

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

Similar Threats

Exploit Protection

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