CVE-2025-7545
binutils: Binutils: Heap Buffer Overflow
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 14, 2025
Updated · September 1, 2026
Description
A flaw was found in binutils. The copy_section function in binutils/objcopy.c is susceptible to a heap-based buffer overflow due to improper bounds checking during data copying. This flaw allows a local attacker to provide a specially crafted file. This manipulation can lead to a denial of service.
Statement
The Moderate severity rating is based on the requirement of local access for an attacker to exploit this vulnerability. Although a successful exploit could lead to heap-based buffer overflow, the prerequisite of having an established presence on the system lowers the risk compared to remotely exploitable vulnerabilities. Red Hat products widely use GNU Binutils, a fundamental set of programming tools for creating and managing binary files, which makes this a component of significant interest. However, the attack vector significantly mitigates the immediate risk to systems.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE-787 · Out-of-bounds Write