| |
Vulnerability CVE-2019-13161
Published: 2019-07-12
Description: |
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). |
Type:
CWE-476 (NULL Pointer Dereference)
CVSS2 => (AV:N/AC:M/Au:S/C:N/I:N/A:P)
CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
3.5/10 |
2.9/10 |
6.8/10 |
Exploit range |
Attack complexity |
Authentication |
Remote |
Medium |
Single time |
Confidentiality impact |
Integrity impact |
Availability impact |
None |
None |
Partial |
References: |
http://downloads.digium.com/pub/security/AST-2019-003.html
https://issues.asterisk.org/jira/browse/ASTERISK-28465
|
|
|
closedb();
?>
Copyright 2024, cxsecurity.com
|
|
|