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OpenAdvisories
Unscored Public exploit CVE-2017-17090 EUVD-2017-8256GHSA-m542-x3mj-mpgq

An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified A…

Published Dec 2, 2017 · Updated Aug 5, 2024 · Assigned by mitre

Package: asterisk Package: asterisk Ecosystem: Debian Ecosystem: Ubuntu

Description

An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 asterisk 1:13.18.3~dfsg-1 —
Debian 9 asterisk 1:13.14.1~dfsg-2+deb9u3 DSA-4076-1
Debian 8 asterisk 1:11.13.1~dfsg-2+deb8u5 DSA-4076-1
Debian 7 asterisk 1:1.8.13.1~dfsg1-3+deb7u8 DLA-1225-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu Pro 16.04 LTS asterisk No fix yet —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

References