Vulnerability Details

Asterisk DoS Vulnerability (AST-2019-008)

Published: 2019-11-22 03:26:51
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:L/Au:S/C:N/I:N/A:C

Detection Type:
Remote Banner Unreliable

Solution Type:
Vendor Patch

Summary:
Asterisk is prone to a denial of service vulnerability.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
If Asterisk receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a crash will occur.

Affected Versions:
Asterisk Open Source 13.x and 13.21 Certified Asterisk.

Recommendations:
Upgrade to Version 13.29.2, 13.21-cert5 or later.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-18976

References:

https://downloads.asterisk.org/pub/security/AST-2019-008.html

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Severity
Medium
CVSS Score
6.8

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