CVE-2021-21375

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
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 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.
Overview
  • CVE ID
  • CVE-2021-21375
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-10T23:15:12
  • Last Modified Date
  • 2022-10-21T22:40:21
Weakness Enumerations
CWE URL
CWE-754 http://cwe.mitre.org/data/definitions/754.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* 1 OR 2.10
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 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:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21375
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21375
History
Created Old Value New Value Data Type Notes
2022-05-10 16:07:54 Added to TrackCVE
2022-12-05 23:31:17 2021-03-10T23:15Z 2021-03-10T23:15:12 CVE Published Date updated
2022-12-05 23:31:17 2022-10-21T22:40:21 CVE Modified Date updated
2022-12-05 23:31:17 Analyzed Vulnerability Status updated