CVE-2022-22764
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Mozilla developers Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96 and Firefox ESR 91.5. 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 < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.