CVE-2022-26382

Mozilla Firefox ESR and 2 others: Observable Discrepancy

CVE-2022-26382 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 98.0, released March 8, 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

0.0051

43rd percentile

While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox < 98.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	98.0	Mozilla Firefox (en-US) 98.0	Mar 8, 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)	98.0+build3-0ubuntu0.18.04.2	firefox 98.0+build3-0ubuntu0.18.04.2	Mar 8, 2022
firefox · Ubuntu 20.04 LTS (focal)	98.0+build3-0ubuntu0.20.04.2	firefox 98.0+build3-0ubuntu0.20.04.2	Mar 8, 2022
firefox · Ubuntu 22.04.1 LTS (jammy)	1:1snap1-0ubuntu1	firefox 1:1snap1-0ubuntu1	Apr 6, 2022
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	98.0+build3-0ubuntu0.18.04.2	firefox-geckodriver 98.0+build3-0ubuntu0.18.04.2	Mar 8, 2022
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	98.0+build3-0ubuntu0.20.04.2	firefox-geckodriver 98.0+build3-0ubuntu0.20.04.2	Mar 8, 2022
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	98.0+build3-0ubuntu0.18.04.2	firefox-mozsymbols 98.0+build3-0ubuntu0.18.04.2	Mar 8, 2022
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	98.0+build3-0ubuntu0.20.04.2	firefox-mozsymbols 98.0+build3-0ubuntu0.20.04.2	Mar 8, 2022

Details

Published
March 8, 2022
Weakness
CWE-203: Observable Discrepancy
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-26382

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