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CVE-2021-32558

Date: July 27, 2021

An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.

Severity Score

Related Resources (11)

https://nvd.nist.gov/vuln/detail/CVE-2021-32558
https://downloads.asterisk.org/pub/security/AST-2021-008.html
https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html
https://security-tracker.debian.org/tracker/CVE-2021-32558
http://seclists.org/fulldisclosure/2021/Jul/49
https://issues.asterisk.org/jira/browse/ASTERISK-29392
https://security.alpinelinux.org/vuln/CVE-2021-32558
http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html
https://www.debian.org/security/2021/dsa-4999
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-32558
https://www.mend.io/vulnerability-database/CVE-2021-32558

Severity Score

Weakness Type (CWE)

Injection

CWE-74

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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