9.3

CVE-2020-12420

Exploit
When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox Version < 78.0
Mozilla ≫ Firefox ESR Version < 68.10.0
Mozilla ≫ Thunderbird Version < 68.10.0
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 19.10
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Opensuse ≫ Leap Version 15.1
Opensuse ≫ Leap Version 15.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.86% 0.765
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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
NIST 9.3 8.6 10
AV:N/AC:M/Au:N/C:C/I:C/A:C
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202007-10
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/
Vendor Advisory
https://usn.ubuntu.com/4421-1/
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202007-09
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-25/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-26/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1643437
Vendor Advisory
Exploit
Issue Tracking