CVE-2020-6831 Information

Description

A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8 Firefox 76 and Thunderbird 68.8.0.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html https://bugzilla.mozilla.org/show_bug.cgi?id=1632241 https://security.gentoo.org/glsa/202005-03 https://security.gentoo.org/glsa/202005-04 https://usn.ubuntu.com/4373-1/ https://www.debian.org/security/2020/dsa-4714 https://www.mozilla.org/security/advisories/mfsa2020-16/ https://www.mozilla.org/security/advisories/mfsa2020-17/ https://www.mozilla.org/security/advisories/mfsa2020-18/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8