CVE-2021-21375

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 version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365	Patch Third Party Advisory
https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp	Exploit Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00023.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00020.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-42	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2021-03-10 15:15

Updated : 2022-10-21 15:40

NVD link : CVE-2021-21375

Mitre link : CVE-2021-21375

JSON object : View

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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Products Affected

debian

debian_linux

teluu

pjsip

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