CVE-2022-31745

Mozilla Firefox ESR and 2 others: Improper Validation of Array Index

CVE-2022-31745 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 101.0, released May 31, 2022. 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

0.0037

30th percentile

If array shift operations are not used, the Garbage Collector may have become confused about valid objects. This vulnerability affects Firefox < 101.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	101.0	Mozilla Firefox (en-US) 101.0	May 31, 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)	101.0.1+build1-0ubuntu0.18.04.1	firefox 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	101.0.1+build1-0ubuntu0.18.04.1	firefox-geckodriver 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox-geckodriver 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	101.0.1+build1-0ubuntu0.18.04.1	firefox-mozsymbols 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox-mozsymbols 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022

Details

Published
May 31, 2022
Weakness
CWE-129: Improper Validation of Array Index
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-31745

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