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Advisories

fzf 0.36.0 through 0.74.5 Denial of Service via maskActionContents

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Severity
low
Date
Affecting

  • fzf >= 0.36.0, <= 0.74.5

CWE
  • CWE-407 Inefficient Algorithmic Complexity
CVSS
2.0
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
Zachariah Mithani (AploSec)
Description
fzf 0.36.0 through 0.74.5 contains an inefficient algorithmic complexity vulnerability in maskActionContents that allows local attackers to exhaust the --listen HTTP server through quadratic string concatenation. Attackers can repeatedly send POST bodies of about 1 MB to the unauthenticated localhost port, blocking the single-threaded server for about 30 seconds each time.

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