Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 76.0 |
| Mozilla | Firefox Esr | < 68.8.0 |
| Mozilla | Thunderbird | < 68.8.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Debian | Debian Linux | 9.0 |
| Opensuse | Leap | 15.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.htmlThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1632241Permissions Required
- https://security.gentoo.org/glsa/202005-03PatchThird Party Advisory
- https://security.gentoo.org/glsa/202005-04Third Party Advisory
- https://usn.ubuntu.com/4373-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4714Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-18/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.htmlThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1632241Permissions Required
- https://security.gentoo.org/glsa/202005-03PatchThird Party Advisory
- https://security.gentoo.org/glsa/202005-04Third Party Advisory
FAQ
What is CVE-2020-6831?
CVE-2020-6831 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 < ...
How severe is CVE-2020-6831?
CVE-2020-6831 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-6831?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Canonical Ubuntu Linux, Debian Debian Linux.