SB2014112002 - Denial of service in GNU Glibc
Published: November 20, 2014
Security Bulletin ID
SB2014112002
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2014-9402)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 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/E:U/U:Clear
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.
Remediation
Install update from vendor's website.