PT-2021-11818 · Asterisk+1 · Asterisk+1

Torrey Searle + 1 · Published 2021-01-29 · Updated 2025-02-13 · CVE-2020-35652

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Asterisk versions prior to 13.38.0 Asterisk versions 14.x through 16.x before 16.15.0 Asterisk versions 17.x before 17.9.0 Asterisk versions 18.x before 18.1.0

Description: An issue was discovered in res pjsip diversion.c. A crash can occur when a SIP message is received with a "History-Info" header that contains a tel-uri, or when a SIP 181 response is received that contains a tel-uri in the Diversion header.

Recommendations: For versions prior to 13.38.0, update to version 13.38.0 or later. For versions 14.x through 16.x before 16.15.0, update to version 16.15.0 or later. For versions 17.x before 17.9.0, update to version 17.9.0 or later. For versions 18.x before 18.1.0, update to version 18.1.0 or later.

Exploit

Fix

Related Identifiers

ALT-PU-2023-6874

ALT-PU-2025-2613

CVE-2020-35652

Affected Products

Alt Linux

Asterisk

References · 16

• 🔥 https://issues.asterisk.org/jira/browse/ASTERISK-29191 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-35652 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-35652 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-35652 · Security Note
• https://issues.asterisk.org/jira/browse/ASTERISK-29219 · Vendor Advisory
• https://downloads.asterisk.org/pub/security/AST-2020-003.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-35652 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-35652 · Vendor Advisory
• https://downloads.asterisk.org/pub/security/AST-2020-004.html · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2020-35652 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35652 · Security Note
• https://osv.dev/vulnerability/CVE-2020-35652 · Vendor Advisory
• https://security.alpinelinux.org/vuln/CVE-2020-35652 · Note
• https://downloads.asterisk.org/pub/security/AST-2020-003-16.diff · Note
• https://downloads.asterisk.org/pub/security/AST-2020-003-13.diff · Note