4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.905 High
EPSS
Percentile
98.8%
Asterisk Open Source 1.8 before 1.8.32.3, 11.x before 11.17.1, 12.x before 12.8.2, and 13.x before 13.3.2 and Certified Asterisk 1.8.28 before 1.8.28-cert5, 11.6 before 11.6-cert11, and 13.1 before 13.1-cert2, when registering a SIP TLS device, does not properly handle a null byte in a domain name in the subject’s Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | all | asterisk | < 1:13.7.2~dfsg-1 | asterisk_1:13.7.2~dfsg-1_all.deb |
Debian | 10 | all | asterisk | < 1:13.7.2~dfsg-1 | asterisk_1:13.7.2~dfsg-1_all.deb |
Debian | 999 | all | asterisk | < 1:13.7.2~dfsg-1 | asterisk_1:13.7.2~dfsg-1_all.deb |