CVE-2022-34471

Mozilla Firefox and 2 others: Insufficient Verification of Data Authenticity

CVE-2022-34471 is fixed in 5 products on 2 platforms, first by Mozilla Firefox ESR (en-US) 102.0, released June 23, 2022. It is not reported as exploited. Patch Radar priority: Routine.

RoutineFixed on 2 platforms

CVSS

6.5

Medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0025

16th percentile

When downloading an update for an addon, the downloaded addon update's version was not verified to match the version selected from the manifest. If the manifest had been tampered with on the server, an attacker could trick the browser into downgrading the addon to a prior version. This vulnerability affects Firefox < 102.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	102.0	Mozilla Firefox (en-US) 102.0	Jun 27, 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)	102.0+build2-0ubuntu0.18.04.1	firefox 102.0+build2-0ubuntu0.18.04.1	Jul 4, 2022
firefox · Ubuntu 20.04 LTS (focal)	102.0+build2-0ubuntu0.20.04.1	firefox 102.0+build2-0ubuntu0.20.04.1	Jul 4, 2022
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	102.0+build2-0ubuntu0.18.04.1	firefox-geckodriver 102.0+build2-0ubuntu0.18.04.1	Jul 4, 2022
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	102.0+build2-0ubuntu0.20.04.1	firefox-geckodriver 102.0+build2-0ubuntu0.20.04.1	Jul 4, 2022
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	102.0+build2-0ubuntu0.18.04.1	firefox-mozsymbols 102.0+build2-0ubuntu0.18.04.1	Jul 4, 2022
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	102.0+build2-0ubuntu0.20.04.1	firefox-mozsymbols 102.0+build2-0ubuntu0.20.04.1	Jul 4, 2022

Details

Published
July 4, 2022
Weakness
CWE-345: Insufficient Verification of Data Authenticity
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-34471

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