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 responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests.

• digium asterisk 1.8.0 • digium asterisk 1.8.1 • digium asterisk 1.8.1.1 • digium asterisk 1.8.1.2 • digium asterisk 1.8.2 • digium asterisk 1.8.2.1 • digium asterisk 1.8.2.2 • digium asterisk 1.8.2.3 • digium asterisk 1.8.2.4 • digium asterisk 1.8.3 • digium asterisk 1.8.3.1 • digium asterisk 1.8.3.2 • digium asterisk 1.8.3.3 • digium asterisk 1.8.4 • digium asterisk 1.8.4.1 • digium asterisk 1.8.4.2 • digium asterisk 1.8.4.3 • digium asterisk 1.8.4.4 • digium asterisk 1.8.5 • digium asterisk 1.8.5.0 • digium asterisk 1.8.6.0 • digium asterisk 1.8.7.0 • digium asterisk 1.8.7.1 • digium asterisk 1.6.2.0 • digium asterisk 1.6.2.1 • digium asterisk 1.6.2.2 • digium asterisk 1.6.2.3 • digium asterisk 1.6.2.4 • digium asterisk 1.6.2.5 • digium asterisk 1.6.2.6 • digium asterisk 1.6.2.15 • digium asterisk 1.6.2.16 • digium asterisk 1.6.2.16.1 • digium asterisk 1.6.2.16.2 • digium asterisk 1.6.2.17 • digium asterisk 1.6.2.17.1 • digium asterisk 1.6.2.17.2 • digium asterisk 1.6.2.17.3 • digium asterisk 1.6.2.18 • digium asterisk 1.6.2.19 • digium asterisk 1.6.2.20 • digium asterisk 1.6.2.21 • digium asterisk 1.4.0 • digium asterisk 1.4.1 • digium asterisk 1.4.2 • digium asterisk 1.4.3 • digium asterisk 1.4.4 • digium asterisk 1.4.5 • digium asterisk 1.4.6 • digium asterisk 1.4.7 • digium asterisk 1.4.7.1 • digium asterisk 1.4.8 • digium asterisk 1.4.9 • digium asterisk 1.4.10 • digium asterisk 1.4.10.1 • digium asterisk 1.4.11 • digium asterisk 1.4.12 • digium asterisk 1.4.12.1 • digium asterisk 1.4.13 • digium asterisk 1.4.14 … and 53 more