Advisories

llama.cpp before b11393 Use-After-Free via common_chat_peg_mapper chat_parser

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severity
critical
date
Affecting
  • llama.cpp >= b8227, < b11393

CWE
  • CWE-416 Use After Free
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Anas
Description
llama.cpp before b11393 contains a use-after-free and double free vulnerability in common_chat_peg_mapper::map that allows unauthenticated remote attackers to corrupt heap memory via a dangling current_tool pointer. Attackers can submit a chat_parser in a POST /completion request emitting a tool-id after a tool-close tag to crash llama-server and shape a heap write primitive.

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