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Advisories

Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 wasi:http Zero Timeout Panic DoS

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Severity
medium
Date
Affecting

  • wasmtime >= 46.0.0, < 48.0.4

  • wasmtime >= 49.0.0, < 49.0.2

CWE
  • CWE-1284 Improper Validation of Specified Quantity in Input
CVSS
5.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
smaeljaish771, KeenSecurityLab
Description
Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial-of-service vulnerability in its wasi:http implementation that allows guests to panic the host. Guests can specify a zero between-bytes-timeout request option, which is forwarded directly to a Tokio API that panics, crashing the host embedding.

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