PRIOn knowledge basePRION:CVE-2020-6831Buffer overflow
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.007 Low
EPSS
Percentile
79.8%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| ubuntu_linux | eq | 16.04 | |
| ubuntu_linux | eq | 18.04 | |
| ubuntu_linux | eq | 19.10 | |
| ubuntu_linux | eq | 20.04 | |
| debian_linux | eq | 9.0 | |
| debian_linux | eq | 10.0 | |
| firefox | lt | 76.0 | |
| firefox_esr | lt | 68.8.0 | |
| thunderbird | lt | 68.8.0 | |
| leap | eq | 15.2 |
References
lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html
packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html
bugzilla.mozilla.org/show_bug.cgi?id=1632241
security.gentoo.org/glsa/202005-03
security.gentoo.org/glsa/202005-04
usn.ubuntu.com/4373-1/
www.debian.org/security/2020/dsa-4714
www.mozilla.org/security/advisories/mfsa2020-16/
www.mozilla.org/security/advisories/mfsa2020-17/
www.mozilla.org/security/advisories/mfsa2020-18/
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.007 Low
EPSS
Percentile
79.8%