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Vulnerability · Published Dec 22, 2022 · Assigned by mozilla

CVE-2022-34471

Medium 6.5

In plain English

A medium-severity insufficient verification of data authenticity in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 83.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20firefox102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.21firefox102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.22firefox102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.23firefox102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.21librewolf102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.22librewolf102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.23librewolf102.0-r0ALPINE-CVE-2022-34471
Alpine:v3.24librewolf102.0-r0ALPINE-CVE-2022-34471

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 102

Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References