CVE-2020-12420

high

Description

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.

References

Advisories
More

https://usn.ubuntu.com/4421-1/

https://security.gentoo.org/glsa/202007-10

https://security.gentoo.org/glsa/202007-09

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html

https://www.mozilla.org/security/advisories/mfsa2020-26/

https://www.mozilla.org/security/advisories/mfsa2020-25/

https://www.mozilla.org/security/advisories/mfsa2020-24/

https://bugzilla.mozilla.org/show_bug.cgi?id=1643437

Details

Source: Mitre, NVD

Published: 2020-07-09

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0046