GNU Binutils 2.45 Linker elf64-x86-64.c elf_x86_64_relocate_section heap-based overflow

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3.1	$0-$5k	0.89

Summaryinfo

A vulnerability was found in GNU Binutils 2.45. It has been declared as problematic. The impacted element is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. Such manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2025-11495. The attack can only be performed from a local environment. Furthermore, an exploit is available. It is advisable to implement a patch to correct this issue. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNU Binutils 2.45. Affected by this issue is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to 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(). Impacted is availability.

The advisory is shared for download at sourceware.org. This vulnerability is handled as CVE-2025-11495. The exploitation is known to be easy. The attack needs to be approached locally. Technical details as well as a public exploit are known.

The exploit is available at sourceware.org. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 270764 (Fedora 42 : mingw-binutils (2025-10c80b93e9)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0 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 (270764) and CERT Bund (WID-SEC-2025-2241). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Google Container-Optimized OS
Fedora Linux
SUSE Linux
Open Source binutils

Productinfo

Type

Programming Tool Software

Vendor

Name

Binutils

Version

2.45

License

open-source

CPE 2.3info

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CPE 2.2info

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CVSSv4info

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VulDB Reliability: 🔍

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CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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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: 🔒

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