| Name | CVE-2009-3727 |
| Description | Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-1952-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| asterisk (PTS) | buster | 1:16.2.1~dfsg-1+deb10u2 | fixed |
| buster (security) | 1:16.28.0~dfsg-0+deb10u4 | fixed | |
| bullseye | 1:16.28.0~dfsg-0+deb11u3 | fixed | |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u4 | fixed | |
| sid | 1:20.6.0~dfsg+~cs6.13.40431414-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| asterisk | source | etch | (unfixed) | end-of-life | ||
| asterisk | source | lenny | 1:1.4.21.2~dfsg-3+lenny1 | DSA-1952-1 | ||
| asterisk | source | (unstable) | 1:1.6.2.0~rc6-1 |
[lenny] - asterisk <no-dsa> (Minor issue)
[etch] - asterisk <end-of-life> (Etch Packages no longer covered by security support)