CVE-2011-4597

NameCVE-2011-4597
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-2367-1
Debian Bugs651552

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
asterisk (PTS)bullseye1:16.28.0~dfsg-0+deb11u4fixed
bullseye (security)1:16.28.0~dfsg-0+deb11u5fixed
sid1:22.0.0~dfsg+~cs6.14.60671435-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
asterisksourcelenny1:1.4.21.2~dfsg-3+lenny6DSA-2367-1
asterisksourcesqueeze1:1.6.2.9-2+squeeze4DSA-2367-1
asterisksource(unstable)1:1.8.8.0~dfsg-1651552
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