CVE-2023-37209

Mozilla Firefox and 2 others: A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object…

CVE-2023-37209 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 115.0, released July 4, 2023. 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
0.0059
48th percentile

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Firefox (en-US) 115.0 Mozilla Firefox (en-US) 115.0 Jul 4, 2023
Mozilla Firefox ESR (en-US) 115.4.0 Mozilla Firefox ESR (en-US) 115.4.0 Oct 17, 2023
Linux
firefox · Ubuntu 20.04 LTS (focal) 115.0+build2-0ubuntu0.20.04.3 firefox 115.0+build2-0ubuntu0.20.04.3 Jul 5, 2023
firefox-geckodriver · Ubuntu 20.04 LTS (focal) 115.0+build2-0ubuntu0.20.04.3 firefox-geckodriver 115.0+build2-0ubuntu0.20.04.3 Jul 5, 2023
firefox-mozsymbols · Ubuntu 20.04 LTS (focal) 115.0+build2-0ubuntu0.20.04.3 firefox-mozsymbols 115.0+build2-0ubuntu0.20.04.3 Jul 5, 2023

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