CVE-2024-3205

2024-04-0200:00:00

ubuntu.com

vulnerability

yaml libyaml

critical

buffer overflow

remote attack

public disclosure

7.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

A vulnerability was found in yaml libyaml up to 0.2.5 and classified as
critical. Affected by this issue is the function
yaml_emitter_emit_flow_sequence_item of the file
/src/libyaml/src/emitter.c. The manipulation leads to heap-based buffer
overflow. The attack may be launched remotely. The exploit has been
disclosed to the public and may be used. The identifier of this
vulnerability is VDB-259052. NOTE: The vendor was contacted early about
this disclosure but did not respond in any way.

Bugs

Notes

Author	Note
jdstrand	golang-goyaml is a go translation of libyaml and shouldn’t share implementation flaws, but may share design flaws
sbeattie	as of 2024-04-15, fix has not landed upstream.
mdeslaur	libyaml-libyaml-perl, golang-goyaml, and golang-yaml.v2 are unrelated codebases. This appears to be an issue with the fuzzer, not libyaml itself: https://github.com/yaml/libyaml/issues/258#issuecomment-2058613931 The libyaml project doesn’t think this CVE should be. Marking as not-affected.