CVE-2023-23606

Memory safety bugs fixed in Firefox 109

CVE-2023-23606 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 109.0, released January 17, 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

0.0052

44th percentile

Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 109.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	109.0	Mozilla Firefox (en-US) 109.0	Jan 17, 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)	109.0+build2-0ubuntu0.18.04.1	firefox 109.0+build2-0ubuntu0.18.04.1	Jan 17, 2023
firefox · Ubuntu 20.04 LTS (focal)	109.0+build2-0ubuntu0.20.04.1	firefox 109.0+build2-0ubuntu0.20.04.1	Jan 17, 2023
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	109.0+build2-0ubuntu0.18.04.1	firefox-geckodriver 109.0+build2-0ubuntu0.18.04.1	Jan 17, 2023
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	109.0+build2-0ubuntu0.20.04.1	firefox-geckodriver 109.0+build2-0ubuntu0.20.04.1	Jan 17, 2023
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	109.0+build2-0ubuntu0.18.04.1	firefox-mozsymbols 109.0+build2-0ubuntu0.18.04.1	Jan 17, 2023
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	109.0+build2-0ubuntu0.20.04.1	firefox-mozsymbols 109.0+build2-0ubuntu0.20.04.1	Jan 17, 2023

Details

Published
January 17, 2023
Weakness
CWE-787: Out-of-bounds Write
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-23606

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