A flaw was found in glibc. An integer overflow in the implementation of the posixmemalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

References: https://sourceware.org/bugzilla/showbug.cgi?id=22343

Patch: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8e448310d74b283c5cd02b9ed7fb997b47bf9b22

Last updated 25 August 2025

A flaw was found in systemd-journald. A stack buffer overflow when passing several MB of arguments to a program calling syslog function. This can lead to a denial of service attack or arbitrary code execution in some cases.

A flaw was found in systemd-journald. An uncontrolled alloca() by writing a crafted message to /run/systemd/journal/socket that results in a stack buffer overflow. This can lead to a denial of service attack or arbitrary code execution in some cases.

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 mempcpyavx512novzeroupper.