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).
References
Link | Resource |
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http://downloads.digium.com/pub/security/AST-2019-003.html | Vendor Advisory |
https://issues.asterisk.org/jira/browse/ASTERISK-28465 | Issue Tracking Vendor Advisory |
https://lists.debian.org/debian-lts-announce/2019/11/msg00038.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Information
Published : 2019-07-12 13:15
Updated : 2022-06-01 12:58
NVD link : CVE-2019-13161
Mitre link : CVE-2019-13161
JSON object : View
CWE
CWE-476
NULL Pointer Dereference
Products Affected
digium
- certified_asterisk
- asterisk
debian
- debian_linux