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.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox ESR | >= unspecified, < 68.8 |
| Mozilla | Firefox | >= unspecified, < 76 |
| Mozilla | Thunderbird | >= unspecified, < 68.8.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.htmlThird Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1632241Permissions Required
- https://security.gentoo.org/glsa/202005-03Patch, Third 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 List, Third Party Advisory
- http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.htmlThird Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1632241Permissions Required
- https://security.gentoo.org/glsa/202005-03Patch, Third 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
Timeline
- Published
- May 26, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified