Bug#983158: asterisk: CVE-2020-35776

[Salvatore Bonaccorso]

Source: asterisk
Version: 1:16.15.1~dfsg-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for asterisk.

CVE-2020-35776[0]:
| A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk
| versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker
| to crash Asterisk by deliberately misusing SIP 181 responses.


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-2020-35776
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35776
[1] https://downloads.asterisk.org/pub/security/AST-2021-001.html

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore