Infinite loop in GNU C Library (glibc) - CVE-2014-9402

Vulnerability identifier: #VU12268

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2014-9402

CWE-ID: CWE-835

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the nss_dns implementation of getnetbyname due to infinite loop when the DNS backend in the Name Service Switch configuration is enabled. A remote attacker can send a positive answer while a network name is being process and cause the service to crash.

GNU C Library (glibc)
Amazon Linux AMI
Gentoo Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power
Fedora
Red Hat Virtualization Host
System x Integrated Management Module (IMM2)
Flex System Integrated Management Module (IMM2)
Integrated Management Module II (IMM2) for BladeCenter Systems
glibc
sys-libs/glibc

Update to version 2.21.

System x Integrated Management Module (IMM2) - update to 1AOO68L
Integrated Management Module II (IMM2) for BladeCenter Systems - update to 1AOO68L
Flex System Integrated Management Module (IMM2) - update to 1AOO68L
glibc - update to 2.20-8.fc21
sys-libs/glibc - update to 2.21-r2

• https://sourceware.org/bugzilla/show_bug.cgi?id=17630

• Denial of service in GNU Glibc
• Amazon Linux AMI update for glibc
• Red Hat update for glibc
• Gentoo update for GNU C Library
• Fedora 21 update for glibc
• Multiple vulnerabilities in IBM Integrated Management Module II (IMM2) for System x, BladeCenter and Flex Systems