GNU Binutils 2.47 Eh Frame Section bfd/elf-eh-frame.c _bfd_elf_write_section_eh_frame buffer overflow

Summaryinfo

A vulnerability categorized as problematic has been discovered in GNU Binutils 2.47. This affects the function _bfd_elf_write_section_eh_frame of the file bfd/elf-eh-frame.c of the component Eh Frame Section Handler. Executing a manipulation of the argument cie_length/fde_length/augmentation_data_size/write_offset can lead to buffer overflow. This vulnerability is handled as CVE-2026-90804. It is possible to launch the attack on the local host. Additionally, an exploit exists. The project was informed of the problem early through a bug report but has not responded yet.

Detailsinfo

A vulnerability was found in GNU Binutils 2.47. It has been declared as problematic. This vulnerability affects the function _bfd_elf_write_section_eh_frame of the file bfd/elf-eh-frame.c of the component Eh Frame Section Handler. The manipulation of the argument cie_length/fde_length/augmentation_data_size/write_offset with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at sourceware.org. This vulnerability was named CVE-2026-90804. The exploitation appears to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through a bug report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Tool Software

Vendor

• GNU

Name

• Binutils

Version

• 2.47

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #920281: GNU Binutils 2.47 (version date 20260726) Heap-based Buffer Overflow (by Dem0000000)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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