CVE-2022-22822
xul-ext-lightning: addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22822 is fixed in 22 products on 1 platform, first by libxmltok1t64 1.2-4.1ubuntu3.1, released September 4, 2019. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0548
92nd percentile
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| expat · Debian 12.15 (bookworm) | 2.4.3-1 | DEBIAN-CVE-2022-22822 | Jan 10, 2022 |
| expat · Debian 13.5 (trixie) | 2.4.3-1 | DEBIAN-CVE-2022-22822 | Jan 10, 2022 |
| expat · Debian 14 | 2.4.3-1 | DEBIAN-CVE-2022-22822 | Jan 10, 2022 |
| expat · RHEL 8 | 0:2.2.5-4.el8_5.3 | RHSA-2022:0951 | Mar 16, 2022 |
| expat · RHEL 9 | 0:2.2.10-12.el9_0 | RHBA-2022:4046 | May 17, 2022 |
| expat · Ubuntu 18.04.6 LTS (bionic) | 2.2.5-3ubuntu0.4 | expat 2.2.5-3ubuntu0.4 | Feb 14, 2022 |
| expat · Ubuntu 20.04 LTS (focal) | 2.2.9-1ubuntu0.2 | expat 2.2.9-1ubuntu0.2 | Feb 14, 2022 |
| expat · Ubuntu 22.04.1 LTS (jammy) | 2.4.3-1 | expat 2.4.3-1 | Jan 10, 2022 |
| expat · Ubuntu 24.10 (oracular) | 2.4.3-1 | expat 2.4.3-1 | Jan 16, 2026 |
| expat · Ubuntu 25.04 (plucky) | 2.4.3-1 | expat 2.4.3-1 | Jan 16, 2026 |
| expat · almalinux 8 | 2.2.5-8.el8_6.2 | ALSA-2022:0951 | Mar 16, 2022 |
| expat · amzn 2023 | 2.5.0-1.amzn2023.0.2 | ALAS2023-2023-058 | Feb 17, 2023 |
| expat · ol 8 | 0:2.2.5-4.el8_5.3 | ELSA-2022-0951 | Mar 16, 2022 |
| expat · rocky 8 | 0:2.2.5-4.el8_5.3 | RLSA-2022:0951 | Mar 16, 2022 |
| expat-debuginfo · amzn 2023 | 2.5.0-1.amzn2023.0.2 | ALAS2023-2023-058 | Feb 17, 2023 |
| expat-debugsource · amzn 2023 | 2.5.0-1.amzn2023.0.2 | ALAS2023-2023-058 | Feb 17, 2023 |
| expat-devel · RHEL 8 | 0:2.2.5-4.el8_5.3 | RHSA-2022:0951 | Mar 16, 2022 |
| expat-devel · RHEL 9 | 0:2.2.10-12.el9_0 | RHBA-2022:4046 | May 17, 2022 |
| expat-devel · almalinux 8 | 2.2.5-8.el8_6.2 | ALSA-2022:0951 | Mar 16, 2022 |
| expat-devel · amzn 2023 | 2.5.0-1.amzn2023.0.2 | ALAS2023-2023-058 | Feb 17, 2023 |
| expat-devel · ol 8 | 0:2.2.5-4.el8_5.3 | ELSA-2022-0951 | Mar 16, 2022 |
| expat-static · amzn 2023 | 2.5.0-1.amzn2023.0.2 | ALAS2023-2023-058 | Feb 17, 2023 |
| firefox · RHEL 8 | 0:91.7.0-3.el8_5 | RHSA-2022:0818 | Mar 10, 2022 |
| firefox · Ubuntu 18.04.6 LTS (bionic) | 98.0+build3-0ubuntu0.18.04.2 | firefox 98.0+build3-0ubuntu0.18.04.2 | Mar 8, 2022 |
| firefox · Ubuntu 20.04 LTS (focal) | 98.0+build3-0ubuntu0.20.04.2 | firefox 98.0+build3-0ubuntu0.20.04.2 | Mar 8, 2022 |
| firefox · Ubuntu 22.04.1 LTS (jammy) | 1:1snap1-0ubuntu1 | firefox 1:1snap1-0ubuntu1 | Apr 6, 2022 |
| firefox · Ubuntu 24.10 (oracular) | 1:1snap1-0ubuntu1 | firefox 1:1snap1-0ubuntu1 | Feb 15, 2022 |
| firefox · Ubuntu 25.04 (plucky) | 1:1snap1-0ubuntu1 | firefox 1:1snap1-0ubuntu1 | Feb 15, 2022 |
| firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) | 98.0+build3-0ubuntu0.18.04.2 | firefox-geckodriver 98.0+build3-0ubuntu0.18.04.2 | Mar 8, 2022 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 98.0+build3-0ubuntu0.20.04.2 | firefox-geckodriver 98.0+build3-0ubuntu0.20.04.2 | Mar 8, 2022 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 98.0+build3-0ubuntu0.18.04.2 | firefox-mozsymbols 98.0+build3-0ubuntu0.18.04.2 | Mar 8, 2022 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 98.0+build3-0ubuntu0.20.04.2 | firefox-mozsymbols 98.0+build3-0ubuntu0.20.04.2 | Mar 8, 2022 |
| libexpat1 · Ubuntu 18.04.6 LTS (bionic) | 2.2.5-3ubuntu0.4 | libexpat1 2.2.5-3ubuntu0.4 | Feb 14, 2022 |
| libexpat1 · Ubuntu 20.04 LTS (focal) | 2.2.9-1ubuntu0.2 | libexpat1 2.2.9-1ubuntu0.2 | Feb 14, 2022 |
| libexpat1 · Ubuntu 22.04.1 LTS (jammy) | 2.4.3-1 | libexpat1 2.4.3-1 | Jan 10, 2022 |
| libexpat1 · Ubuntu 24.10 (oracular) | 2.4.3-1 | libexpat1 2.4.3-1 | Jan 16, 2026 |
| libexpat1 · Ubuntu 25.04 (plucky) | 2.4.3-1 | libexpat1 2.4.3-1 | Jan 16, 2026 |
| libxmltok1 · Ubuntu 18.04.6 LTS (bionic) | 1.2-4ubuntu0.18.04.1~esm4 | libxmltok1 1.2-4ubuntu0.18.04.1~esm4 | Jan 10, 2022 |
| libxmltok1 · Ubuntu 20.04 LTS (focal) | 1.2-4ubuntu0.20.04.1~esm4 | libxmltok1 1.2-4ubuntu0.20.04.1~esm4 | Jan 10, 2022 |
| libxmltok1 · Ubuntu 22.04.1 LTS (jammy) | 1.2-4ubuntu0.22.04.1~esm4 | libxmltok1 1.2-4ubuntu0.22.04.1~esm4 | Jan 10, 2022 |
| libxmltok1t64 · Ubuntu 24.04.5 LTS (noble) | 1.2-4.1ubuntu2.24.0.4.1+esm2 | libxmltok1t64 1.2-4.1ubuntu2.24.0.4.1+esm2 | Jan 10, 2022 |
| libxmltok1t64 · Ubuntu 24.10 (oracular) | 1.2-4.1ubuntu3.1 | libxmltok1t64 1.2-4.1ubuntu3.1 | Sep 4, 2019 |
| thunderbird · RHEL 8 | 0:91.7.0-2.el8_5 | RHSA-2022:0845 | Mar 14, 2022 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | thunderbird 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| thunderbird · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | thunderbird 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | thunderbird-gnome-support 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | thunderbird-gnome-support 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | thunderbird-mozsymbols 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | thunderbird-mozsymbols 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
| xmlrpc-c · RHEL 8 | 0:1.51.0-8.el8 | RHSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c · almalinux 8 | 1.51.0-8.el8 | ALSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c · ol 8 | 0:1.51.0-8.el8 | ELSA-2022-7692 | Nov 15, 2022 |
| xmlrpc-c · rocky 8 | 0:1.51.0-8.el8 | RLSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-c++ · RHEL 8 | 0:1.51.0-8.el8 | RHSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-c++ · almalinux 8 | 1.51.0-8.el8 | ALSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-c++ · ol 8 | 0:1.51.0-8.el8 | ELSA-2022-7692 | Nov 15, 2022 |
| xmlrpc-c-client · RHEL 8 | 0:1.51.0-8.el8 | RHSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-client · almalinux 8 | 1.51.0-8.el8 | ALSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-client · ol 8 | 0:1.51.0-8.el8 | ELSA-2022-7692 | Nov 15, 2022 |
| xmlrpc-c-client++ · RHEL 8 | 0:1.51.0-8.el8 | RHSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-client++ · almalinux 8 | 1.51.0-8.el8 | ALSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-client++ · ol 8 | 0:1.51.0-8.el8 | ELSA-2022-7692 | Nov 15, 2022 |
| xmlrpc-c-devel · RHEL 8 | 0:1.51.0-8.el8 | RHSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-devel · almalinux 8 | 1.51.0-8.el8 | ALSA-2022:7692 | Nov 8, 2022 |
| xmlrpc-c-devel · ol 8 | 0:1.51.0-8.el8 | ELSA-2022-7692 | Nov 15, 2022 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | xul-ext-calendar-timezones 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | xul-ext-calendar-timezones 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | xul-ext-gdata-provider 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | xul-ext-gdata-provider 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:91.11.0+build2-0ubuntu0.20.04.1 | xul-ext-lightning 1:91.11.0+build2-0ubuntu0.20.04.1 | Jul 4, 2022 |
| xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) | 1:91.11.0+build2-0ubuntu0.22.04.1 | xul-ext-lightning 1:91.11.0+build2-0ubuntu0.22.04.1 | Jul 4, 2022 |
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