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Advisories

rsync 3.0.1 < 3.5.0 Heap Out-of-Bounds Write via read_args()

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severity
high
date
Affecting

  • rsync >= 3.0.1, <= 3.4.4

CWE
  • CWE-787 Out-of-bounds Write
CVSS
8.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
gregkh
Description
rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

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