CVE-2021-32686

Published on: 07/23/2021 12:00:00 AM UTC

Last Modified on: 08/05/2021 03:20:00 PM UTC

CVE-2021-32686 - advisory for GHSA-cv8x-p47p-99wr

Source: Mitre Source: Nist Print: PDF PDF
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Certain versions of Pjsip from Teluu contain the following vulnerability:

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.

  • CVE-2021-32686 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • Affected Vendor/Software: URL Logo pjsip - pjproject version < 2.11.1

CVSS3 Score: 5.9 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK HIGH NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 4.3 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE PARTIAL

CVE References

Description Tags Link
Race condition in SSL socket server by nanangizz · Pull Request #2716 · pjsip/pjproject · GitHub github.com
text/html
URL Logo MISC github.com/pjsip/pjproject/pull/2716
Merge pull request from GHSA-cv8x-p47p-99wr · pjsip/[email protected] · GitHub github.com
text/html
URL Logo MISC github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd
Release PJSIP version 2.11.1 · pjsip/pjproject · GitHub github.com
text/html
URL Logo MISC github.com/pjsip/pjproject/releases/tag/2.11.1
Race condition in SSL socket server · Advisory · pjsip/pjproject · GitHub github.com
text/html
URL Logo CONFIRM github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationTeluuPjsipAllAllAllAll
  • cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-32686 : PJSIP is a free and open source multimedia communication library written in C language implementin… twitter.com/i/web/status/1… 2021-07-23 21:38:37
Reddit Logo Icon /r/netcve CVE-2021-32686 2021-07-23 22:38:28
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