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Advisories

llama.cpp b1886–b7445 Null Pointer Dereference DoS via llama-android.cpp

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severity
medium
date
Affecting

  • llama.cpp >= b1886, <= b7445

  • llama.cpp >= 0.9.0, <= 0.17.1

CWE
  • CWE-476 NULL Pointer Dereference
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Vladimir Tokarev (@G1ND1L4) - Vulnerability Research Tech Lead, Cyera, Ofek Itach (@ofekitach) - Security Research Team Lead, Cyera
Description
llama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails to validate the model context pointer before dereferencing it. Attackers can supply a malicious, corrupt, or truncated model file to trigger a null context condition, causing a SIGSEGV crash that terminates the Android application process and results in denial of service.

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