| Name | CVE-2017-8779 |
| Description | rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation for XDR strings, which allows remote attackers to cause a denial of service (memory consumption with no subsequent free) via a crafted UDP packet to port 111, aka rpcbomb. |
| 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 | DLA-936-1, DLA-937-1, DSA-3845-1 |
| NVD severity | high (attack range: remote) |
| Debian Bugs | 861834, 861835, 861836 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libtirpc (PTS) | wheezy | 0.2.2-5 | vulnerable |
| wheezy (security) | 0.2.2-5+deb7u1 | fixed | |
| jessie | 0.2.5-1 | vulnerable | |
| jessie (security) | 0.2.5-1+deb8u1 | fixed | |
| buster, sid, stretch | 0.2.5-1.2 | fixed | |
| ntirpc (PTS) | buster, sid, stretch | 1.4.4-1 | fixed |
| rpcbind (PTS) | wheezy | 0.2.0-8+deb7u1 | vulnerable |
| wheezy (security) | 0.2.0-8+deb7u2 | fixed | |
| jessie | 0.2.1-6+deb8u1 | vulnerable | |
| jessie (security) | 0.2.1-6+deb8u2 | fixed | |
| buster, sid, stretch | 0.2.3-0.6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libtirpc | source | (unstable) | 0.2.5-1.2 | high | 861834 | |
| libtirpc | source | jessie | 0.2.5-1+deb8u1 | high | DSA-3845-1 | |
| libtirpc | source | wheezy | 0.2.2-5+deb7u1 | high | DLA-936-1 | |
| ntirpc | source | (unstable) | 1.4.4-1 | high | 861836 | |
| rpcbind | source | (unstable) | 0.2.3-0.6 | high | 861835 | |
| rpcbind | source | jessie | 0.2.1-6+deb8u2 | high | DSA-3845-1 | |
| rpcbind | source | wheezy | 0.2.0-8+deb7u2 | high | DLA-937-1 |
http://www.openwall.com/lists/oss-security/2017/05/04/1
https://github.com/guidovranken/rpcbomb/