CVE-2021-3518

Publication date 18 May 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

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

Status

Package Ubuntu Release Status
libxml2 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Fixed 2.9.10+dfsg-6.3ubuntu0.1
20.10 groovy
Fixed 2.9.10+dfsg-5ubuntu0.20.10.2
20.04 LTS focal
Fixed 2.9.10+dfsg-5ubuntu0.20.04.1
18.04 LTS bionic
Fixed 2.9.4+dfsg1-6.1ubuntu1.4
16.04 LTS xenial
14.04 LTS trusty

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libxml2

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H