| Name | CVE-2007-4103 |
| Description | The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released. |
| 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) | jessie, jessie (lts) | 1:11.13.1~dfsg-2+deb8u8 | fixed |
| stretch (security) | 1:13.14.1~dfsg-2+deb9u6 | fixed |
| stretch (lts), stretch | 1:13.14.1~dfsg-2+deb9u10 | fixed |
| buster, buster (lts) | 1:16.28.0~dfsg-0+deb10u5 | fixed |
| buster (security) | 1:16.28.0~dfsg-0+deb10u4 | fixed |
| bullseye | 1:16.28.0~dfsg-0+deb11u4 | fixed |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u5 | fixed |
| sid | 1:22.0.0~dfsg+~cs6.14.60671435-1 | 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) | 1:1.4.9~dfsg-1 | | | |
Notes
[etch] - asterisk <not-affected> (Only 1.2.20, 1.2.21, 1.2.21.1 and 1.2.22 affected)
[sarge] - asterisk <not-affected> (1.0 not affected)