llama.cpp has a Heap Buffer Overflow via Integer Overflow in `mem_size` Calculation — Bypass of CVE-2025-53630 Fix
Résumé
llama.cpp has a Heap Buffer Overflow via Integer Overflow in mem_size Calculation — Bypass of CVE-2025-53630 Fix
Description d'origine
La description telle que publiée par la source (souvent en anglais).
llama.cpp is an inference of several LLM models in C/C++. Prior to b8146, the gguf_init_from_file_impl() in gguf.cpp is vulnerable to an Integer overflow, leading to an undersized heap allocation. Using the subsequent fread() writes 528+ bytes of attacker-controlled data past the buffer boundary. This is a bypass of a similar bug in the same file - CVE-2025-53630, but the fix overlooked some areas. This vulnerability is fixed in b8146.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2026-27940 llama.cpp Corrigé dans: 8461+dfsg-1
- Ubuntu UBUNTU-CVE-2026-27940 llama.cpp
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov