CVE-2022-34480

Mozilla Firefox and 2 others: Access of Uninitialized Pointer

CVE-2022-34480 is fixed in 13 products on 2 platforms, first by Mozilla Firefox ESR (en-US) 102.0, released June 23, 2022. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms
CVSS
8.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0058
48th percentile

Within the <code>lg_init()</code> function, if several allocations succeed but then one fails, an uninitialized pointer would have been freed despite never being allocated. This vulnerability affects Firefox < 102.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Firefox (en-US) 102.0 Mozilla Firefox (en-US) 102.0 Jun 27, 2022
Mozilla Firefox ESR (en-US) 102.0 Mozilla Firefox ESR (en-US) 102.0 Jun 23, 2022
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 102.0+build2-0ubuntu0.18.04.1 firefox 102.0+build2-0ubuntu0.18.04.1 Jul 4, 2022
firefox · Ubuntu 20.04 LTS (focal) 102.0+build2-0ubuntu0.20.04.1 firefox 102.0+build2-0ubuntu0.20.04.1 Jul 4, 2022
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) 102.0+build2-0ubuntu0.18.04.1 firefox-geckodriver 102.0+build2-0ubuntu0.18.04.1 Jul 4, 2022
firefox-geckodriver · Ubuntu 20.04 LTS (focal) 102.0+build2-0ubuntu0.20.04.1 firefox-geckodriver 102.0+build2-0ubuntu0.20.04.1 Jul 4, 2022
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 102.0+build2-0ubuntu0.18.04.1 firefox-mozsymbols 102.0+build2-0ubuntu0.18.04.1 Jul 4, 2022
firefox-mozsymbols · Ubuntu 20.04 LTS (focal) 102.0+build2-0ubuntu0.20.04.1 firefox-mozsymbols 102.0+build2-0ubuntu0.20.04.1 Jul 4, 2022
libnss3 · Ubuntu 18.04.6 LTS (bionic) 2:3.35-2ubuntu2.15 libnss3 2:3.35-2ubuntu2.15 Jul 4, 2022
libnss3 · Ubuntu 20.04 LTS (focal) 2:3.49.1-1ubuntu1.8 libnss3 2:3.49.1-1ubuntu1.8 Jul 4, 2022
libnss3 · Ubuntu 22.04.1 LTS (jammy) 2:3.68.2-0ubuntu1.1 libnss3 2:3.68.2-0ubuntu1.1 Jul 4, 2022
libnss3-tools · Ubuntu 18.04.6 LTS (bionic) 2:3.35-2ubuntu2.15 libnss3-tools 2:3.35-2ubuntu2.15 Jul 4, 2022
libnss3-tools · Ubuntu 20.04 LTS (focal) 2:3.49.1-1ubuntu1.8 libnss3-tools 2:3.49.1-1ubuntu1.8 Jul 4, 2022
libnss3-tools · Ubuntu 22.04.1 LTS (jammy) 2:3.68.2-0ubuntu1.1 libnss3-tools 2:3.68.2-0ubuntu1.1 Jul 4, 2022
thunderbird · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 thunderbird 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
thunderbird · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 thunderbird 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022
thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 thunderbird-gnome-support 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 thunderbird-gnome-support 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022
thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 thunderbird-mozsymbols 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 thunderbird-mozsymbols 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022
xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 xul-ext-calendar-timezones 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 xul-ext-calendar-timezones 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022
xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 xul-ext-gdata-provider 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 xul-ext-gdata-provider 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022
xul-ext-lightning · Ubuntu 20.04 LTS (focal) 1:102.2.2+build1-0ubuntu0.20.04.1 xul-ext-lightning 1:102.2.2+build1-0ubuntu0.20.04.1 Dec 22, 2022
xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) 1:102.2.2+build1-0ubuntu0.22.04.1 xul-ext-lightning 1:102.2.2+build1-0ubuntu0.22.04.1 Dec 22, 2022

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