Bug#1032092: asterisk: CVE-2022-23537 CVE-2022-23547 CVE-2022-39269

[Moritz Mühlenhoff]

Source: asterisk
X-Debbugs-CC: team at security.debian.org
Severity: grave
Tags: security

Hi,

The following vulnerabilities were published for asterisk.

CVE-2022-23537[0]:
| PJSIP is a free and open source multimedia communication library
| written in C language implementing standard based protocols such as
| SIP, SDP, RTP, STUN, TURN, and ICE. Buffer overread is possible when
| parsing a specially crafted STUN message with unknown attribute. The
| vulnerability affects applications that uses STUN including PJNATH and
| PJSUA-LIB. The patch is available as a commit in the master branch
| (2.13.1).

https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w
https://github.com/pjsip/pjproject/commit/d8440f4d711a654b511f50f79c0445b26f9dd1e1
	
CVE-2022-23547[1]:
| PJSIP is a free and open source multimedia communication library
| written in C language implementing standard based protocols such as
| SIP, SDP, RTP, STUN, TURN, and ICE. This issue is similar to
| GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain
| STUN message. The vulnerability affects applications that uses STUN
| including PJNATH and PJSUA-LIB. The patch is available as commit in
| the master branch.

https://github.com/pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w
https://github.com/pjsip/pjproject/commit/d8440f4d711a654b511f50f79c0445b26f9dd1e1
https://github.com/pjsip/pjproject/security/advisories/GHSA-cxwq-5g9x-x7fr
https://github.com/pjsip/pjproject/commit/bc4812d31a67d5e2f973fbfaf950d6118226cf36

CVE-2022-39269[2]:
| PJSIP is a free and open source multimedia communication library
| written in C. When processing certain packets, PJSIP may incorrectly
| switch from using SRTP media transport to using basic RTP upon SRTP
| restart, causing the media to be sent insecurely. The vulnerability
| impacts all PJSIP users that use SRTP. The patch is available as
| commit d2acb9a in the master branch of the project and will be
| included in version 2.13. Users are advised to manually patch or to
| upgrade. There are no known workarounds for this vulnerability.

https://github.com/pjsip/pjproject/security/advisories/GHSA-wx5m-cj97-4wwg
https://github.com/pjsip/pjproject/commit/d2acb9af4e27b5ba75d658690406cec9c274c5cc


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

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-23537
    https://www.cve.org/CVERecord?id=CVE-2022-23537
[1] https://security-tracker.debian.org/tracker/CVE-2022-23547
    https://www.cve.org/CVERecord?id=CVE-2022-23547
[2] https://security-tracker.debian.org/tracker/CVE-2022-39269
    https://www.cve.org/CVERecord?id=CVE-2022-39269

Please adjust the affected versions in the BTS as needed.