Out-of-bounds Write

Affecting glibc package, versions *

Overview

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.

References

• Debian Security Tracker
• Exploit DB
• Exploit DB
• MISC
• Netapp Security Advisory
• Oss-Sec Mailing List
• RHSA Security Advisory
• Security Focus
• Security Tracker
• Ubuntu CVE Tracker
• Ubuntu Security Advisory
• Ubuntu Security Advisory