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Advisories

Ettercap through 0.8.4.1 Use-After-Free via PCRE2 Filter Substitution

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Severity
high
Date
Affecting

  • ettercap <= 0.8.4.1

CWE
  • CWE-416 Use After Free
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Adiel Sol, Arad Inbar, Erez Cohen, Nir Somech, Ben Grinberg, Daniel Lubel, Shir Sadon (DREAM Security Research Team), Emilio Escobar
Description
Ettercap through 0.8.4.1 contains a use-after-free vulnerability in func_pcre() in src/ec_filter.c that reads the PCRE2 ovector after freeing match data. Network-adjacent attackers can send packets matching a loaded pcre_regex() substitution filter to corrupt memory and potentially execute code as root.

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