CVE-2021-28903

HIGH

libyang <= 1.0.225 - Denial of Service via lyxml_parse_mem() Recursion

Title source: llm

Description

A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.

References (2)

Core 2

Core References

Exploit, Issue Tracking, Third Party Advisory x_refsource_confirm

https://github.com/CESNET/libyang/issues/1453

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202107-54

Scores

CVSS v3 7.5

EPSS 0.0243

EPSS Percentile 82.0%

Attack Vector NETWORK

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

Details

CWE

CWE-674

Status published

Products (1)

cesnet/libyang < 1.0.225

Published May 20, 2021

Tracked Since Feb 18, 2026