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Advisories

SnailJob 1.7.0 Denial of Service via FuryUtil.deserialize OOM

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severity
high
date
Affecting

  • SnailJob (snail-job) <= 1.7.0, fixed in commit 2.0.0

CWE
  • CWE-789 Memory Allocation with Excessive Size Value
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
wn123, Fiona
Description
SnailJob 1.7.0 contains a denial of service vulnerability in the FuryUtil.deserialize helper that allows authenticated attackers to crash the server by supplying a crafted Zstandard-compressed payload with an inflated frame_content_size field in the frame header. Attackers can store a base64-encoded Zstandard payload declaring an arbitrarily large decompressed size in a retry task argument, causing the JVM to attempt an unbounded array allocation and triggering an unrecoverable java.lang.OutOfMemoryError when the task is dispatched through the retry-task pipeline.

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