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CVE-2021-3517

Published: 19 May 2021

There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.

Priority

Medium

CVSS 3 base score: 8.6

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
bionic
Released (2.9.4+dfsg1-6.1ubuntu1.4)
focal
Released (2.9.10+dfsg-5ubuntu0.20.04.1)
groovy
Released (2.9.10+dfsg-5ubuntu0.20.10.2)
hirsute
Released (2.9.10+dfsg-6.3ubuntu0.1)
impish Not vulnerable
(2.9.10+dfsg-6.7)
jammy Not vulnerable
(2.9.10+dfsg-6.7)
precise Ignored
(end of ESM support, was needs-triage)
trusty
Released (2.9.1+dfsg1-3ubuntu4.13+esm2)
upstream
Released (2.9.10+dfsg-6.6)
xenial
Released (2.9.3+dfsg1-1ubuntu0.7+esm1)