CVE-2014-9402

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-02-24 · updated 2026-06-17
Weakness: CWE-399

Description

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.

Affected products

Canonical Ubuntu Linux: 10.04, 12.04, 14.04, 14.10
GNU C Library (glibc): through 2.20
Opensuse: 13.1, 13.2

References

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://access.redhat.com/errata/RHSA-2018:0805
https://seclists.org/bugtraq/2019/Jun/14
https://seclists.org/bugtraq/2019/Sep/7

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