| Name | CVE-2015-1781 |
| Description | Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer. |
| 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) |
| References | DLA-230-1, DSA-3480-1 |
| NVD severity | medium (attack range: remote) |
| Debian Bugs | 796105 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| eglibc (PTS) | wheezy | 2.13-38+deb7u10 | fixed |
| wheezy (security) | 2.13-38+deb7u12 | fixed | |
| glibc (PTS) | jessie (security), jessie | 2.19-18+deb8u10 | fixed |
| stretch | 2.24-11+deb9u3 | fixed | |
| stretch (security) | 2.24-11+deb9u1 | fixed | |
| 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) | medium | ||
| eglibc | source | squeeze | 2.11.3-4+deb6u6 | medium | DLA-230-1 | |
| eglibc | source | wheezy | 2.13-38+deb7u10 | medium | DSA-3480-1 | |
| glibc | source | (unstable) | 2.19-20 | medium | 796105 | |
| glibc | source | experimental | 2.21-0experimental1 | medium | ||
| glibc | source | jessie | 2.19-18+deb8u1 | medium |
https://sourceware.org/bugzilla/show_bug.cgi?id=18287
Upstream commit: https://sourceware.org/git/?p=glibc.git;a=commit;h=2959eda9272a03386