DEBIAN-CVE-2025-49847
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-49847
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-49847.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-49847
- Upstream
- Published
- 2025-06-17T20:15:32Z
- Modified
- 2026-08-27T23:05:33Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
llama.cpp is an inference of several LLM models in C/C++. Prior to version b5662, an attacker‐supplied GGUF model vocabulary can trigger a buffer overflow in llama.cpp’s vocabulary‐loading code. Specifically, the helper _try_copy in llama.cpp/src/vocab.cpp: llama_vocab::impl::token_to_piece() casts a very large size_t token length into an int32_t, causing the length check (if (length < (int32_t)size)) to be bypassed. As a result, memcpy is still called with that oversized size, letting a malicious model overwrite memory beyond the intended buffer. This can lead to arbitrary memory corruption and potential code execution. This issue has been patched in version b5662.
- References
Affected packages
Debian:14 / llama.cpp
Package
- Name
- llama.cpp
- Purl
- pkg:deb/debian/llama.cpp?arch=source&distro=forky