CVE-2021-32686

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
Description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
Overview
  • CVE ID
  • CVE-2021-32686
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-23T22:15:08
  • Last Modified Date
  • 2022-11-16T19:02:12
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* 1 OR 2.11.1
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd Patch Third Party Advisory
https://github.com/pjsip/pjproject/pull/2716 Patch Third Party Advisory
https://github.com/pjsip/pjproject/releases/tag/2.11.1 Release Notes Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202210-37 Third Party Advisory
https://www.debian.org/security/2021/dsa-4999 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-32686
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32686
History
Created Old Value New Value Data Type Notes
2022-04-04 00:41:28 Added to TrackCVE
2022-12-05 06:52:31 2021-07-23T22:15Z 2021-07-23T22:15:08 CVE Published Date updated
2022-12-05 06:52:31 2022-11-16T19:02:12 CVE Modified Date updated
2022-12-05 06:52:31 Analyzed Vulnerability Status updated
2022-12-05 06:52:35 References updated