Vulnerability DatabaseCVE-2013-7423
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CVE-2013-7423
Published:February 24, 2015
Updated:May 17, 2026
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.
Related Resources (12)
https://access.redhat.com/security/cve/CVE-2013-7423
http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
https://github.com/golang/go/issues/6336
https://security.gentoo.org/glsa/201602-02
http://www.openwall.com/lists/oss-security/2015/01/28/20
http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
http://www.ubuntu.com/usn/USN-2519-1
http://www.securityfocus.com/bid/72844
http://rhn.redhat.com/errata/RHSA-2015-0863.html
https://sourceware.org/bugzilla/show_bug.cgi?id=15946
https://access.redhat.com/errata/RHSA-2016:1207
http://seclists.org/fulldisclosure/2021/Sep/0
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CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
CVSS v2
Base Score:
5
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
EPSS
Base Score:
3.15