🛡️ CVE-2022-38749 — debian-linux

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-121 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

snakeYAML before 1.31 vulnerable to Denial of Service due to Out-of-bounds Write

Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow.

How this vulnerability can be exploited

This issue can be reached over the 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 none, integrity none, availability high.

Weakness class

CVE-2022-38749 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2022-38749 is recorded against 9 packages.

  • be.cylab:snakeyaml
  • com.alipay.sofa.acts:acts-common-util
  • debian-linux
  • io.prometheus.jmx:jmx-prometheus-httpserver
  • io.prometheus.jmx:jmx-prometheus-httpserver-java6
  • org.testifyproject.external:external-snakeyaml
  • org.yaml:snakeyaml (fixed in 1.31)
  • pl.droidsonroids.yaml:snakeyaml
  • snakeyaml (fixed in 1.31)

Timeline and source

Published on 6 September 2022 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
arxiv.org (Web)
bitbucket.org (Package)
bitbucket.org (Web)
bugs.chromium.org (Web)
lists.debian.org (Web)
security.gentoo.org (Web)
security.netapp.com (Web)

CVE-2022-38749 on other distributions

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

Details

Severity Medium
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2022-09-06
Updated 2026-08-12
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
be.cylab:snakeyaml — —
com.alipay.sofa.acts:acts-common-util — —
debian-linux — —
io.prometheus.jmx:jmx-prometheus-httpserver — —
io.prometheus.jmx:jmx-prometheus-httpserver-java6 — —
org.testifyproject.external:external-snakeyaml — —
org.yaml:snakeyaml — 1.31
pl.droidsonroids.yaml:snakeyaml — —
snakeyaml — 1.31

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