p PatchFirst

CVE-2021-3517

CVE-2021-3517

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.6 · High · EPSS 17.0% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libxml2

    Versions
    • libxml2 2.9.11: Affected

    No fix published

  • libxml2 Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.9.10+dfsg-6.6

    Update to 2.9.10+dfsg-6.6

  • libxml2 Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.9.10+dfsg-6.6

    Update to 2.9.10+dfsg-6.6

  • libxml2 Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.9.10+dfsg-6.6

    Update to 2.9.10+dfsg-6.6

  • libxml2 Ubuntu:Pro:14.04:LTS

    Versions
    • 2.9.1+dfsg1-3ubuntu2
    • 2.9.1+dfsg1-3ubuntu3
    • 2.9.1+dfsg1-3ubuntu4
    • 2.9.1+dfsg1-3ubuntu4.1
    • 2.9.1+dfsg1-3ubuntu4.2
    • 2.9.1+dfsg1-3ubuntu4.3
    • 2.9.1+dfsg1-3ubuntu4.4
    • 2.9.1+dfsg1-3ubuntu4.5
    • 2.9.1+dfsg1-3ubuntu4.6
    • 2.9.1+dfsg1-3ubuntu4.7
    • 2.9.1+dfsg1-3ubuntu4.8
    • 2.9.1+dfsg1-3ubuntu4.9
    • 2.9.1+dfsg1-3ubuntu4.10
    • 2.9.1+dfsg1-3ubuntu4.11
    • 2.9.1+dfsg1-3ubuntu4.12
    • 2.9.1+dfsg1-3ubuntu4.13
    • 2.9.1+dfsg1-3ubuntu4.13+esm1
    Affected ranges
    • ECOSYSTEM: < 2.9.1+dfsg1-3ubuntu4.13+esm2

    Update to 2.9.1+dfsg1-3ubuntu4.13+esm2

  • libxml2 Ubuntu:Pro:16.04:LTS

    Versions
    • 2.9.2+zdfsg1-4
    • 2.9.2+zdfsg1-4ubuntu1
    • 2.9.2+zdfsg1-4ubuntu2
    • 2.9.2+zdfsg1-4ubuntu3
    • 2.9.3+dfsg1-1
    • 2.9.3+dfsg1-1ubuntu0.1
    • 2.9.3+dfsg1-1ubuntu0.2
    • 2.9.3+dfsg1-1ubuntu0.3
    • 2.9.3+dfsg1-1ubuntu0.4
    • 2.9.3+dfsg1-1ubuntu0.5
    • 2.9.3+dfsg1-1ubuntu0.6
    • 2.9.3+dfsg1-1ubuntu0.7
    Affected ranges
    • ECOSYSTEM: < 2.9.3+dfsg1-1ubuntu0.7+esm1

    Update to 2.9.3+dfsg1-1ubuntu0.7+esm1

  • libxml2 Ubuntu:18.04:LTS

    Versions
    • 2.9.4+dfsg1-4ubuntu1
    • 2.9.4+dfsg1-5ubuntu1
    • 2.9.4+dfsg1-5ubuntu2
    • 2.9.4+dfsg1-5.1ubuntu1
    • 2.9.4+dfsg1-5.2ubuntu1
    • 2.9.4+dfsg1-6.1ubuntu1
    • 2.9.4+dfsg1-6.1ubuntu1.2
    • 2.9.4+dfsg1-6.1ubuntu1.3
    Affected ranges
    • ECOSYSTEM: < 2.9.4+dfsg1-6.1ubuntu1.4

    Update to 2.9.4+dfsg1-6.1ubuntu1.4

  • libxml2 Ubuntu:20.04:LTS

    Versions
    • 2.9.4+dfsg1-7ubuntu3
    • 2.9.4+dfsg1-7ubuntu5
    • 2.9.4+dfsg1-8ubuntu1
    • 2.9.4+dfsg1-8ubuntu2
    • 2.9.4+dfsg1-8ubuntu3
    • 2.9.10+dfsg-1ubuntu3
    • 2.9.10+dfsg-4build1
    • 2.9.10+dfsg-5
    Affected ranges
    • ECOSYSTEM: < 2.9.10+dfsg-5ubuntu0.20.04.1

    Update to 2.9.10+dfsg-5ubuntu0.20.04.1

Original sources

Check your server →