CVE-2026-90803: GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow
A security vulnerability has been detected in GNU Binutils 2.47. Affected by this vulnerability is the function elfx8664relocatesection of the file bfd/elf64-x86-64.c of the component ld. Such manipulation of the argument roff leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 addresses this issue. The name of the patch is 471130b39c03623ec6d78ece377ff4da3f6bfe7b. It is recommended to upgrade the affected component.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GNU Binutils ld (bfd/elf64-x86-64.c, function elf_x86_64_relocate_section)to a version that resolves this vulnerability.Fixed in 2.48Patch 471130b39c03623ec6d78ece377ff4da3f6bfe7b
Event History
Frequently Asked Questions
Who is exposed to this issue?
Systems using GNU Binutils ld version 2.47 are affected. Exploitation must be approached locally and requires low privileges.
What must an attacker do to exploit it?
The attacker needs to manipulate the roff argument reaching elf_x86_64_relocate_section in bfd/elf64-x86-64.c, causing a buffer overflow. No user interaction is required.
Is public exploit information available?
Yes. The exploit has been publicly disclosed and may be used.
What remediation is available?
Upgrade GNU Binutils ld to version 2.48. The identified patch is 471130b39c03623ec6d78ece377ff4da3f6bfe7b.