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Advisories

Kvazaar through 2.3.2 Infinite Loop DoS via Y4M Header Parser

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Severity
medium
Date
Affecting

  • Kvazaar <= 2.3.2

CWE
  • CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
HaiND from the Post and Telecommunication Institute of Technology, Marko Viitanen (fador)
Description
Kvazaar through 2.3.2 contains an infinite loop vulnerability in read_header() in src/encmain.c that allows attackers to hang the command-line encoder by supplying a truncated Y4M header. Attackers can provide a crafted .y4m file lacking a terminating newline, causing unchecked EOF reads that hang the process indefinitely while consuming a full CPU core.

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