Bug#881256: asterisk: CVE-2017-16672: AST-2017-011: Memory/File Descriptor/RTP leak in pjsip session resource

[Salvatore Bonaccorso]

Source: asterisk
Version: 1:13.17.2~dfsg-1
Severity: important
Tags: patch security upstream
Forwarded: https://issues.asterisk.org/jira/browse/ASTERISK-27345

Hi,

the following vulnerability was published for asterisk.

CVE-2017-16672[0]:
| An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14
| before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before
| 13.13-cert7. A memory leak occurs when an Asterisk pjsip session object
| is created and that call gets rejected before the session itself is
| fully established. When this happens the session object never gets
| destroyed. Eventually Asterisk can run out of memory and crash.

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-2017-16672
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16672
[1] https://issues.asterisk.org/jira/browse/ASTERISK-27345
[2] http://downloads.digium.com/pub/security/AST-2017-011.html

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore