CVE-2020-28242 — Uncontrolled Recursion in Asterisk

CWE-674 — Uncontrolled Recursion4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 38.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Sangoma AsteriskDebian AsteriskAsterisk Certified Asterisk+2 more
Timeline
PublishedNov 6
Latest updateMay 24

Description

An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/asterisk< asterisk 1:16.15.0~dfsg-1 (bullseye)
▶NVDsangoma/asterisk13.0 — 13.37.1+3
▶Debiansangoma/asterisk< 1:16.15.0~dfsg-1

Also affects: Debian Linux 9.0, Fedora 33

🔴Vulnerability Details

2
GHSA
GHSA-q5gr-h5mj-hp63: An issue was discovered in Asterisk Open Source 13↗2022-05-24
▶
OSV
CVE-2020-28242: An issue was discovered in Asterisk Open Source 13↗2020-11-06
▶

📋Vendor Advisories

1
Debian
CVE-2020-28242: asterisk - An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before...↗2020
▶
CVE-2020-28242 — Uncontrolled Recursion in Asterisk | cvebase