Log in Start free

Vulnerability · Published Jan 29, 2021 · Assigned by mitre

CVE-2020-35652

Medium 6.5

In plain English

A medium-severity security flaw in the asterisk package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.9%top 20.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in res_pjsip_diversion.c in Sangoma Asterisk before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0. 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20asterisk18.1.1-r0ALPINE-CVE-2020-35652
Alpine:v3.21asterisk18.1.1-r0ALPINE-CVE-2020-35652
Alpine:v3.22asterisk18.1.1-r0ALPINE-CVE-2020-35652
Alpine:v3.23asterisk18.1.1-r0ALPINE-CVE-2020-35652
Alpine:v3.24asterisk18.1.1-r0ALPINE-CVE-2020-35652
Debian:14asterisk1:16.15.1~dfsg-1DEBIAN-CVE-2020-35652
Ubuntu:22.04:LTSasteriskno fix listedUBUNTU-CVE-2020-35652
Ubuntu:24.04:LTSasteriskno fix listedUBUNTU-CVE-2020-35652
Ubuntu:25.10asteriskno fix listedUBUNTU-CVE-2020-35652
Ubuntu:26.04:LTSasteriskno fix listedUBUNTU-CVE-2020-35652
Ubuntu:26.10asteriskno fix listedUBUNTU-CVE-2020-35652

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References