[Secure-testing-team] Bug#883342: asterisk: CVE-2017-17090: DOS Vulnerability in Asterisk chan_skinny

[Salvatore Bonaccorso]

Source: asterisk
Version: 1:13.18.1~dfsg-1
X-Debbugs-CC: team at security.debian.org secure-testing-team at lists.alioth.debian.org
Severity: grave
Tags: security fixed-upstream upstream
Forwarded: https://issues.asterisk.org/jira/browse/ASTERISK-27452

Hi,

the following vulnerability was published for asterisk.

CVE-2017-17090[0]:
| 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.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-17090
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17090
[1] https://issues.asterisk.org/jira/browse/ASTERISK-27452
[2] http://downloads.asterisk.org/pub/security/AST-2017-013.html

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore