Published: 18/02/2021 Updated: 24/02/2021

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 5.9 | Impact Score: 3.6 | Exploitability Score: 2.2

VMScore: 383

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

An issue exists in res_pjsip_session.c in Digium Asterisk up to and including 13.38.1; 14.x, 15.x, and 16.x up to and including 16.16.0; 17.x up to and including 17.9.1; and 18.x up to and including 18.2.0, and Certified Asterisk up to and including 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.

Vulnerable Product	Search on Vulmon	Subscribe to Product
digium asterisk
digium certified asterisk 16.8

Debian Bug report logs - #983159 asterisk: CVE-2021-26906 Package: src:asterisk; Maintainer for src:asterisk is Debian VoIP Team <pkg-voip-maintainers@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 20 Feb 2021 06:51:02 UTC Severity: grave Tags: security, upstream Found in ...

Full Disclosure mailing list archives   By Date By Thread </form>    AST-2021-005: Remote Crash Vulnerability in PJSIP channel driver   ...

CWE-404 http://packetstormsecurity.com/files/161477/Asterisk-Project-Security-Advisory-AST-2021-005.html http://seclists.org/fulldisclosure/2021/Feb/61 https://downloads.asterisk.org/pub/security/https://downloads.asterisk.org/pub/security/AST-2021-005.html https://issues.asterisk.org/jira/browse/ASTERISK-29196 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983159 https://nvd.nist.gov

CVE-2021-26906

Vulnerability Summary

Vulnerability Trend

Vendor Advisories

Mailing Lists

References

Vulmon Search

About

Products

Connect