CVE-2023-29547

Mozilla Firefox and 2 others: When a secure cookie existed in the Firefox cookie jar an insecure cookie for the same domain could have…

CVE-2023-29547 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
6.5
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
41st percentile

When a secure cookie existed in the Firefox cookie jar an insecure cookie for the same domain could have been created, when it should have silently failed. This could have led to a desynchronization in expected results when reading from the secure cookie. 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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