CVE-2015-1781

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
Debian Bugs	796105

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
glibc (PTS)	stretch	2.24-11+deb9u4	fixed
	stretch (security)	2.24-11+deb9u1	fixed
	buster	2.28-10	fixed
	bullseye	2.31-13	fixed
	bookworm	2.31-17	fixed
	sid	2.32-3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
eglibc	source	squeeze	2.11.3-4+deb6u6	DLA-230-1
eglibc	source	wheezy	2.13-38+deb7u10	DSA-3480-1
eglibc	source	(unstable)	(unfixed)
glibc	source	experimental	2.21-0experimental1
glibc	source	jessie	2.19-18+deb8u1
glibc	source	(unstable)	2.19-20		796105

https://sourceware.org/bugzilla/show_bug.cgi?id=18287
Upstream commit: https://sourceware.org/git/?p=glibc.git;a=commit;h=2959eda9272a03386