| Name | CVE-2012-0876 |
| Description | The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more) |
| References | DSA-2525-1 |
| NVD severity | medium (attack range: remote) |
| Debian Bugs | 663579, 687672 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| expat (PTS) | wheezy | 2.1.0-1+deb7u2 | fixed |
| wheezy (security) | 2.1.0-1+deb7u5 | fixed | |
| jessie | 2.1.0-6+deb8u3 | fixed | |
| jessie (security) | 2.1.0-6+deb8u4 | fixed | |
| stretch | 2.2.0-2 | fixed | |
| stretch (security) | 2.2.0-2+deb9u1 | fixed | |
| buster | 2.2.1-1 | fixed | |
| sid | 2.2.1-2 | fixed | |
| python2.6 (PTS) | wheezy | 2.6.8-1.1 | fixed |
| xmlrpc-c (PTS) | wheezy | 1.16.33-3.2 | fixed |
| jessie | 1.33.14-0.2 | fixed | |
| buster, sid, stretch | 1.33.14-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| expat | source | (unstable) | 2.1.0~beta3-1 | medium | 663579 | |
| expat | source | squeeze | 2.0.1-7+squeeze1 | medium | DSA-2525-1 | |
| python2.6 | source | (unstable) | (not affected) | |||
| xmlrpc-c | source | (unstable) | 1.16.33-3.2 | low | 687672 |
[squeeze] - xmlrpc-c <no-dsa> (Minor issue)
- python2.6 <not-affected> (configured with --with-system-expat since 2.6.6-4)