| Name | CVE-2018-1000001 |
| Description | In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | high (attack range: local) |
| Debian Bugs | 887001 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| eglibc (PTS) | wheezy | 2.13-38+deb7u10 | vulnerable |
| wheezy (security) | 2.13-38+deb7u12 | vulnerable |
| glibc (PTS) | jessie (security), jessie | 2.19-18+deb8u10 | vulnerable |
| stretch | 2.24-11+deb9u3 | vulnerable |
| stretch (security) | 2.24-11+deb9u1 | vulnerable |
| buster, sid | 2.27-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| eglibc | source | (unstable) | (unfixed) | high | | |
| glibc | source | (unstable) | 2.26-4 | high | | 887001 |
Notes
[stretch] - glibc <postponed> (Minor issue, can be fixed along in next DSA or preferably point release)
[jessie] - glibc <postponed> (Minor issue, can be fixed along in next DSA or preferably point release)
[wheezy] - eglibc <postponed> (Minor issue, can be fixed along in next DSA)
http://www.openwall.com/lists/oss-security/2018/01/11/5
https://sourceware.org/bugzilla/show_bug.cgi?id=22679
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=52a713fdd0a30e1bd79818e2e3c4ab44ddca1a94