8.8

CVE-2021-29985

Exploit
A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox Version < 91.0
Mozilla ≫ Firefox ESR Version < 78.13.0
Mozilla ≫ Thunderbird Version < 78.13.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.45% 0.699
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://security.gentoo.org/glsa/202202-03
Third Party Advisory
https://security.gentoo.org/glsa/202208-14
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-33/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-34/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-35/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-36/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1722083
Vendor Advisory
Exploit
Issue Tracking