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CVE-2013-7423

Published: 24 February 2015

The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function.

Notes

AuthorNote
mdeslaur
fixed by any/cvs-resolv-reuse-fd.diff in utopic

Priority

Medium

Status

Package Release Status
glibc
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream Needs triage

lucid Does not exist

utopic Not vulnerable
(2.19-10ubuntu2.2)
Patches:
upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f9d2d03254a58d92635a311a42253eeed5a40a47
eglibc
Launchpad, Ubuntu, Debian
upstream Needs triage

lucid
Released (2.11.1-0ubuntu7.21)
precise
Released (2.15-0ubuntu10.11)
trusty
Released (2.19-0ubuntu6.6)
utopic Does not exist