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Advisories

QuickJS-NG before 0.16.0 Heap Buffer Overflow via Proxy ownKeys Enumeration

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Severity
high
Date
Affecting

  • QuickJS-NG >= 0, < 0.16.0

CWE
  • CWE-190 Integer Overflow or Wraparound
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Tristan Madani (Talence Security), Saúl Ibarra Corretgé
Description
QuickJS-NG before 0.16.0 contains an integer overflow in js_proxy_get_own_property_names() in quickjs.c that causes a heap buffer overflow on 32-bit hosts. Attackers running JavaScript can return a large array-like object from a Proxy ownKeys trap to wrap the allocation size, causing crashes or potential code execution.

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