VDB-316243 · Submit #614355 · CVE-2025-7545

GNU Binutils 2.45 binutils/objcopy.c copy_section heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in GNU Binutils 2.45. This issue affects the function copy_section of the file binutils/objcopy.c. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2025-7545. The attack requires local access. In addition, an exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic was found in GNU Binutils 2.45. Affected by this vulnerability is the function copy_section of the file binutils/objcopy.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at sourceware.org. This vulnerability is known as CVE-2025-7545. The exploitation appears to be easy. Attacking locally is a requirement. Technical details and also a public exploit are known.

It is possible to download the exploit at sourceware.org. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 242877 (Fedora 41 : mingw-binutils (2025-200da46dc6)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 08c3cbe5926e4d355b5cb70bbec2b1eeb40c2944 is able to eliminate this problem. The bugfix is ready for download at sourceware.org.

The vulnerability is also documented in the databases at Tenable (242877), EUVD (EUVD-2025-21278) and CERT Bund (WID-SEC-2025-1543). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Amazon Linux 2
Fedora Linux
Ubuntu Linux
SUSE Linux
Open Source binutils

Productinfo

Type

Programming Tool Software

Vendor

Name

Binutils

Version

2.45

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 242877
Nessus Name: Fedora 41 : mingw-binutils (2025-200da46dc6)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 08c3cbe5926e4d355b5cb70bbec2b1eeb40c2944

Timelineinfo

07/12/2025 🔍
07/12/2025 +0 days 🔍
12/02/2025 +143 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: 33049
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2025-7545 (🔍)
GCVE (CVE): GCVE-0-2025-7545
GCVE (VulDB): GCVE-100-316243
EUVD: 🔍
CERT Bund: WID-SEC-2025-1543 - binutils: Mehrere Schwachstellen ermöglichen Denial of Service

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/12/2025 19:05
Updated: 12/02/2025 10:03
Changes: 07/12/2025 19:05 (61), 07/14/2025 01:34 (30), 07/14/2025 01:43 (1), 07/14/2025 20:29 (7), 07/27/2025 19:44 (2), 07/30/2025 21:36 (18), 08/27/2025 19:31 (1), 10/30/2025 11:37 (1), 12/02/2025 10:03 (1)
Complete: 🔍
Submitter: arthurx
Cache ID: 216::103

Submitinfo

Accepted

Submit #614355: GNU binutils--gdb 2.45 Heap-based Buffer Overflow (by arthurx)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.