SB2017090405 - Remote code execution in GNU Glibc
Published: September 4, 2017
Security Bulletin ID
SB2017090405
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free error (CVE-ID: CVE-2017-12133)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists in the DNS stub resolver due to it will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attackers due to IP fragmentation when enabling EDNS support. A remote attacker can trigger use after free and execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.