Out-of-bounds Write

Affecting glibc package, versions <2.27-3ubuntu1.2

Overview

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.

References

• Debian Security Tracker
• Exploit DB
• MISC
• Netapp Security Advisory
• Netapp Security Advisory
• Oracle Security Advisory
• REDHAT
• RHSA Security Advisory
• Security Focus
• UBUNTU
• Ubuntu CVE Tracker