Incomplete Blacklist Affecting rust-wasmtime package, versions <26.0.1+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN13-RUSTWASMTIME-10004881
- published3 May 2025
- disclosed5 Nov 2024
Introduced: 5 Nov 2024
CVE-2024-51745 (opens in a new tab)How to fix?
Upgrade Debian:13 rust-wasmtime to version 26.0.1+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rust-wasmtime package and not the rust-wasmtime package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so on. Untrusted Wasm programs that are given access to any filesystem directory could bypass the sandbox and access devices through those special device filenames with superscript digits, and through them gain access peripheral devices connected to the computer, or network resources mapped to those devices. This can include modems, printers, network printers, and any other device connected to a serial or parallel port, including emulated USB serial ports. Patch releases for Wasmtime have been issued as 24.0.2, 25.0.3, and 26.0.1. Users of Wasmtime 23.0.x and prior are recommended to upgrade to one of these patched versions. There are no known workarounds for this issue. Affected Windows users are recommended to upgrade.
References
- https://security-tracker.debian.org/tracker/CVE-2024-51745
- https://en.wikipedia.org/wiki/ISO/IEC_8859-1
- https://github.com/bytecodealliance/cap-std/pull/371
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-c2f5-jxjv-2hh8
- https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions