CVE-2020-6831

CVSS V2 High 7.5 CVSS V3 Critical 9.8
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.
Overview
  • CVE ID
  • CVE-2020-6831
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-05-26T18:15:11
  • Last Modified Date
  • 2021-07-21T11:39:23
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 76.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 68.8.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 68.8.0
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2020-17/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-18/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-16/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1632241 Permissions Required
https://usn.ubuntu.com/4373-1/ Third Party Advisory
https://security.gentoo.org/glsa/202005-03 Patch Third Party Advisory
https://security.gentoo.org/glsa/202005-04 Third Party Advisory
https://www.debian.org/security/2020/dsa-4714 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html Mailing List Third Party Advisory
http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-6831
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6831
History
Created Old Value New Value Data Type Notes
2022-05-10 07:05:30 Added to TrackCVE
2022-12-04 16:59:06 2020-05-26T18:15Z 2020-05-26T18:15:11 CVE Published Date updated
2022-12-04 16:59:06 2021-07-21T11:39:23 CVE Modified Date updated
2022-12-04 16:59:06 Analyzed Vulnerability Status updated