Vulnerability CVE-2020-6831
Published: 2020-05-26

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.

Type:

CWE-120

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

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Mozilla -> Firefox 
Mozilla -> Firefox esr 
Mozilla -> Thunderbird 

 References:
https://bugzilla.mozilla.org/show_bug.cgi?id=1632241
https://usn.ubuntu.com/4373-1/
https://www.mozilla.org/security/advisories/mfsa2020-16/
https://www.mozilla.org/security/advisories/mfsa2020-17/
https://www.mozilla.org/security/advisories/mfsa2020-18/
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