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FreeBSD: VID-E9D2E981-A46D-11E9-BED9-001999F8D30B (CVE-2019-13161): asterisk -- Remote Crash Vulnerability in chan_sip channel driver

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FreeBSD: VID-E9D2E981-A46D-11E9-BED9-001999F8D30B (CVE-2019-13161): asterisk -- Remote Crash Vulnerability in chan_sip channel driver

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
06/28/2019
Created
07/15/2019
Added
07/13/2019
Modified
08/16/2019

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-E9D2E981-A46D-11E9-BED9-001999F8D30B:

The Asterisk project reports:

When T.38 faxing is done in Asterisk a T.38 reinvite

may be sent to an endpoint to switch it to T.38. If the

endpoint responds with an improperly formatted SDP answer

including both a T.38 UDPTL stream and an audio or video

stream containing only codecs not allowed on the SIP peer

or user a crash will occur. The code incorrectly assumes

that there will be at least one common codec when T.38

is also in the SDP answer.

Solution(s)

  • freebsd-upgrade-package-asterisk13
  • freebsd-upgrade-package-asterisk15
  • freebsd-upgrade-package-asterisk16

References

  • CVE-2019-13161

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