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CVE-2020-6831

Date: May 26, 2020

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.

Severity Score

Related Resources (16)

https://security-tracker.debian.org/tracker/CVE-2020-6831
https://nvd.nist.gov/vuln/detail/CVE-2020-6831
http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html
https://security.alpinelinux.org/vuln/CVE-2020-6831
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-6831
https://security.gentoo.org/glsa/202005-04
https://bugzilla.mozilla.org/show_bug.cgi?id=1632241
https://usn.ubuntu.com/4373-1/
https://www.mozilla.org/security/advisories/mfsa2020-18/
https://security.gentoo.org/glsa/202005-03
https://www.mozilla.org/security/advisories/mfsa2020-17/
https://www.debian.org/security/2020/dsa-4714
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html
https://access.redhat.com/security/cve/CVE-2020-6831
https://www.mozilla.org/security/advisories/mfsa2020-16/
https://www.mend.io/vulnerability-database/CVE-2020-6831

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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