CVE-2021-26712 — Asterisk vulnerability

4 documents4 sources

Severity

7.5HIGHNVD

EPSS

3.3%

top 12.83%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Digium Asterisk Digium Certified Asterisk Debian Asterisk

Timeline

PublishedFeb 18

Latest updateMay 24

Description

Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶NVDdigium/certified_asterisk16.8

▶NVDdigium/asterisk16.0.0 — 16.16.1+3

▶Alpinedigium/asterisk< 16.16.1-r0+11

▶debiandebian/asterisk

Patches

Patch: issues.asterisk.org ↗Patch: issues.asterisk.org ↗

🔴Vulnerability Details

GHSA

GHSA-5ph6-fxv2-7rf2: Incorrect access controls in res_srtp↗2022-05-24

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OSV

CVE-2021-26712: Incorrect access controls in res_srtp↗2021-02-18

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📋Vendor Advisories

Debian

CVE-2021-26712: asterisk - Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17...↗2021

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