CVE-2023-29538

Mozilla Firefox and 2 others: Under specific circumstances a WebExtension may have received a <code>jar:file:///</code> URI instead…

CVE-2023-29538 is fixed in 5 products on 2 platforms, first by firefox 112.0+build2-0ubuntu0.18.04.1, released April 11, 2023. It is not reported as exploited. Patch Radar priority: Routine.

RoutineFixed on 2 platforms
CVSS
4.3
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0040
34th percentile

Under specific circumstances a WebExtension may have received a <code>jar:file:///</code> URI instead of a <code>moz-extension:///</code> URI during a load request. This leaked directory paths on the user's machine. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Firefox (en-US) 112.0 Mozilla Firefox (en-US) 112.0 Apr 12, 2023
Mozilla Firefox ESR (en-US) 115.4.0 Mozilla Firefox ESR (en-US) 115.4.0 Oct 17, 2023
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 112.0+build2-0ubuntu0.18.04.1 firefox 112.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
firefox · Ubuntu 20.04 LTS (focal) 112.0+build2-0ubuntu0.20.04.1 firefox 112.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic) 112.0+build2-0ubuntu0.18.04.1 firefox-geckodriver 112.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
firefox-geckodriver · Ubuntu 20.04 LTS (focal) 112.0+build2-0ubuntu0.20.04.1 firefox-geckodriver 112.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 112.0+build2-0ubuntu0.18.04.1 firefox-mozsymbols 112.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
firefox-mozsymbols · Ubuntu 20.04 LTS (focal) 112.0+build2-0ubuntu0.20.04.1 firefox-mozsymbols 112.0+build2-0ubuntu0.20.04.1 Apr 11, 2023

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