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5.6 Medium

CVE-2026-15003 Binutils: gnu binutils: heap-buffer-overflow in linker leads to information disclosure and denial of service

Description

A flaw was found in the GNU Binutils (Binary Utilities) linker. This vulnerability, a heap-buffer-overflow read (CWE-125), occurs when the linker processes a specially crafted 32-bit XCOFF (Extended Common Object File Format) object file. An attacker could exploit this by providing a malicious file, leading to an out-of-bounds read of memory. This can result in information disclosure, potentially revealing sensitive heap data, and a Denial of Service (DoS) due to the linker crashing.

CVSS 3.1 detail

Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H

Exploitable with local access to the machine, with an ordinary account and if a user takes an action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Local
Attack complexity
Low
Privileges required
Low
Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images 2.46 earliest → < 2.46.1-1.1.hum1 2.46.1-1.1.hum1
Red Hat OpenShift Container Platform 4 Versions not published
Red Hat OpenShift Container Platform 5 Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published

Other CVEs of Red Hat Enterprise Linux 10

The 1454 CVEs of Red Hat Enterprise Linux 10 →
CVE-2026-120749 Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver cannot be delivered to a monitored bus 6.2 Medium CVE-2026-123151 Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail Not rated CVE-2026-121997 Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch 8.1 High CVE-2026-121996 Gdb: gdbserver: heap disclosure and wild pointer in gdb_parse_agent_expr via untrusted agent-expression length 8.2 High
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