cbcvebase.
CVE-2011-4597
published 2011-12-15

CVE-2011-4597: The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for…

PriorityP429medium5CVSS 2.0
AVNACLAuNCPINAN
EPSS
3.28%
86.9th percentile
The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests.

Affected

115 ranges· showing 25
VendorProductVersion rangeFixed in
debianasterisk< asterisk 1:1.8.8.0~dfsg-1 (bullseye)asterisk 1:1.8.8.0~dfsg-1 (bullseye)
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CVSS provenance

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv5.0MEDIUM
vendor_debian5.0MEDIUM
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