CVE-2014-9402
First published: Wed Dec 17 2014(Updated: )
The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library (glibc) | <=2.20 | |
| Ubuntu Linux | =10.04 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =14.10 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 |
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Reference Links
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=11e3417af6e354f1942c68a271ae51e892b2814d
- https://sourceware.org/bugzilla/show_bug.cgi?id=17630
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1175370
- https://access.redhat.com/security/cve/CVE-2014-9402
- http://seclists.org/oss-sec/2014/q4/1080
- https://access.redhat.com/security/updates/classification/
- https://access.redhat.com/errata/RHSA-2018:0805
- https://bugzilla.redhat.com/show_bug.cgi?id=1175369
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
- http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
- http://seclists.org/fulldisclosure/2019/Jun/18
- http://seclists.org/fulldisclosure/2019/Sep/7
- http://www.openwall.com/lists/oss-security/2014/12/18/1
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.securityfocus.com/bid/71670
- http://www.ubuntu.com/usn/USN-2519-1
- https://seclists.org/bugtraq/2019/Jun/14
- https://seclists.org/bugtraq/2019/Sep/7
- https://security.gentoo.org/glsa/201602-02
Frequently Asked Questions
What is the severity of CVE-2014-9402?
CVE-2014-9402 has a high severity rating due to its potential to cause a denial of service.
How do I fix CVE-2014-9402?
To mitigate CVE-2014-9402, upgrade to glibc version 2.21 or later.
Which versions of glibc are affected by CVE-2014-9402?
CVE-2014-9402 affects glibc versions prior to 2.21.
What systems are impacted by CVE-2014-9402?
Systems such as Ubuntu Linux 10.04, 12.04, 14.04, 14.10, and openSUSE 13.1 and 13.2 are impacted by CVE-2014-9402.
Can CVE-2014-9402 be exploited remotely?
Yes, CVE-2014-9402 can be exploited remotely by attackers through DNS responses.
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