ALPINE-CVE-2021-3537

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-3537
Published: 14 May 2021, 20:15
Last modified:03 Dec 2025, 22:48

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

14 May 2021, 20:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:48
Last Modified
Vulnerability information updated

Description

A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•libxml2

    < 2.9.9-r5 | < 2.9.10-r5 | < 2.9.10-r6 | < 2.9.10-r7 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0 | < 2.9.11-r0

References (1)