CVE-2025-7546: 
Linux Debian vulnerability analysis and mitigation

A vulnerability has been identified in GNU Binutils 2.45, specifically affecting the bfdelfsetgroupcontents function in the bfd/elf.c file. The vulnerability was disclosed on July 13, 2025, and has been assigned CVE-2025-7546. This security issue allows for out-of-bounds write operations, which could potentially compromise system security (NVD).

The vulnerability manifests as a heap corruption caused by a negative-size memset in the bfdelfsetgroupcontents function. The issue can be triggered through the objcopy utility with specific parameters. The vulnerability has received a CVSS v4.0 score of 4.8 (Medium) with the vector string CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P, and a CVSS v3.1 score of 5.3 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L (VulDB).

The vulnerability enables out-of-bounds write operations, which could lead to memory corruption and potential system compromise. The attack can be launched locally, affecting the integrity and security of the system running the vulnerable GNU Binutils version (NVD).

A patch has been released to address this vulnerability, identified by the commit hash 41461010eb7c79fee7a9d5f6209accdaac66cc6b. It is strongly recommended to apply this patch to affected systems running GNU Binutils 2.45 (NVD).