- Vulnerabilities 81,192
Asterisk Multiple DoS Vulnerabilities (AST-2020-003, AST-2020-004)
Published: 2020-12-23 06:04:38
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 multiple denial of service vulnerabilities.
Detection Method:
Checks if a vulnerable version is present on the target host.
Technical Details:
Multiple flaws exist in the res_pjsip_diversion module:
- A crash can occur when a SIP message is received that has a History-Info header, which contains a tel-uri.
- A crash can occur when a SIP 181 response is received that has a Diversion header, which contains a tel-uri.
Affected Versions:
Asterisk Open Source 13.38.0, 16.15.0, 17.9.0 and 18.1.0.
Recommendations:
Upgrade to Version 13.38.1, 16.15.1, 17.9.1, 18.1.1 or later.
https://downloads.asterisk.org/pub/security/AST-2020-003.html
https://downloads.asterisk.org/pub/security/AST-2020-004.html
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