Amazon Linux 2023 Security Advisory: ALAS2023-2026-3118
Advisory Released Date: 2026-09-29
Advisory Updated Date: 2026-09-29
A flaw was found in GDB's STABS debug format parser. The
read_member_functions() function in gdb/stabsread.c contains a linked
list removal bug in the code that separates destructor and non-destructor
member functions of C++ classes. The bug causes the destructor entries to
remain in the main function list while the list length counter is
decremented, resulting in an out-of-bounds write when the function list
is copied to its final allocated array. An attacker can craft an ELF
binary with malicious .stab and .stabstr sections that triggers this
out-of-bounds write when a user opens the file in GDB and performs any
symbol-inspection operation such as setting a breakpoint. The inferior
process does not need to be executed. Under controlled conditions, this
was demonstrated to achieve execution of arbitrary commands within the
GDB process. (CVE-2026-13732)
Affected Packages:
crash
Issue Correction:
Run dnf update crash --releasever 2023.12.20260928 or dnf update --advisory ALAS2023-2026-3118 --releasever 2023.12.20260928 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
aarch64:
crash-debuginfo-8.0.5-5.amzn2023.0.2.aarch64
crash-devel-8.0.5-5.amzn2023.0.2.aarch64
crash-8.0.5-5.amzn2023.0.2.aarch64
crash-debugsource-8.0.5-5.amzn2023.0.2.aarch64
src:
crash-8.0.5-5.amzn2023.0.2.src
x86_64:
crash-debuginfo-8.0.5-5.amzn2023.0.2.x86_64
crash-devel-8.0.5-5.amzn2023.0.2.x86_64
crash-8.0.5-5.amzn2023.0.2.x86_64
crash-debugsource-8.0.5-5.amzn2023.0.2.x86_64