CVE-2013-7423

MEDIUM

Description

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.

References

http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html

http://rhn.redhat.com/errata/RHSA-2015-0863.html

http://www.openwall.com/lists/oss-security/2015/01/28/20

http://www.securityfocus.com/bid/72844

http://www.ubuntu.com/usn/USN-2519-1

https://access.redhat.com/errata/RHSA-2016:1207

https://github.com/golang/go/issues/6336

https://security.gentoo.org/glsa/201602-02

https://sourceware.org/bugzilla/show_bug.cgi?id=15946

Details

Source: MITRE

Published: 2015-02-24

Updated: 2018-10-30

Type: CWE-17

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM