ALAS2027-2026-095

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)

aarch64:
    crash-debuginfo-9.0.2-2.amzn2027.0.2.aarch64
    crash-devel-9.0.2-2.amzn2027.0.2.aarch64
    crash-9.0.2-2.amzn2027.0.2.aarch64
    crash-debugsource-9.0.2-2.amzn2027.0.2.aarch64

src:
    crash-9.0.2-2.amzn2027.0.2.src

x86_64:
    crash-debuginfo-9.0.2-2.amzn2027.0.2.x86_64
    crash-debugsource-9.0.2-2.amzn2027.0.2.x86_64
    crash-9.0.2-2.amzn2027.0.2.x86_64
    crash-devel-9.0.2-2.amzn2027.0.2.x86_64