CVE-2022-31748

Mozilla Firefox ESR and 2 others: Improper Restriction of Operations within the Bounds of a Memory Buffer

CVE-2022-31748 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: High.

HighFixed on 2 platforms

CVSS

9.8

Medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0070

53rd percentile

Mozilla developers Gabriele Svelto, Timothy Nikkel, Randell Jesup, Jon Coppeard, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100. 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 < 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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-31748

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