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Advisories

BabelDOC from 0.3.61 before 0.7.0 Denial of Service via ToUnicode CMap Parsing

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Severity
high
Date
Affecting

  • BabelDOC >= 0.3.61, < 0.7.0

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Zachariah Mithani (AploSec), awwaawwa
Description
BabelDOC from 0.3.61 before 0.7.0 contains a resource exhaustion vulnerability that allows remote attackers to exhaust CPU and memory by supplying unbounded bfrange and cidrange spans. Attackers can submit a crafted PDF whose embedded ToUnicode CMap declares a huge range, driving billions of loop iterations and stalling the translation worker.

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