Your submission was sent successfully! Close

You have successfully unsubscribed! Close

CVE-2021-3516

Published: 1 June 2021

There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
impish Not vulnerable
(2.9.10+dfsg-6.7)
trusty
Released (2.9.1+dfsg1-3ubuntu4.13+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
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)
xenial
Released (2.9.3+dfsg1-1ubuntu0.7+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
hirsute
Released (2.9.10+dfsg-6.3ubuntu0.1)
jammy Not vulnerable
(2.9.10+dfsg-6.7)
upstream
Released (2.9.10+dfsg-6.6, 2.9.11)
Patches:
upstream: https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H