| Name | CVE-2007-4521 |
| Description | Asterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail storage backend, allows remote attackers to cause a denial of service via an e-mail with an "invalid/corrupted" MIME body, which triggers a crash when the recipient listens to voicemail. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
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 | sarge | (not affected) | | | |
| asterisk | source | etch | (not affected) | | | |
| asterisk | source | (unstable) | (not affected) | | | |
Notes
- asterisk <not-affected> (The voicemail backend is not enabled in Debian)
[sarge] - asterisk <not-affected> (Only Asterisk 1.4.x is affected)
[etch] - asterisk <not-affected> (Only Asterisk 1.4.x is affected)
Patch: http://lists.digium.com/pipermail/asterisk-commits/2007-August/015743.html
the backend will be enabled in future uploads with a fixed package.