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).
Attack Vector Network
Attack Complexity High
Privileges Required Low
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
AV:N/AC:M/Au:S/C:N/I:N/A:P
| Vendors | Products |
|---|---|
| Digium |
|
| Debian |
|
Configuration 1 [-]
|
Configuration 2 [-]
|
Configuration 3 [-]
|
References
| Link | Resource |
|---|---|
| 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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-07-12T19:24:37
Updated: 2022-04-03T07:06:09
Reserved: 2019-07-02T00:00:00
Link: CVE-2019-13161
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-07-12T20:15:11.127
Modified: 2022-06-01T19:58:13.673
Link: CVE-2019-13161
JSON object: View
Redhat Information
No data.
CWE