An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38 re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL stream and another media stream containing only a codec (which is not permitted according to the chan_sip configuration).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-07-12T19:24:37

Updated: 2024-08-04T23:41:10.494Z

Reserved: 2019-07-02T00:00:00

Link: CVE-2019-13161

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-07-12T20:15:11.127

Modified: 2022-06-01T19:58:13.673

Link: CVE-2019-13161

cve-icon Redhat

No data.