CVE-2024-21896

NameCVE-2024-21896
DescriptionThe permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nodejs (PTS)buster10.24.0~dfsg-1~deb10u1fixed
buster (security)10.24.0~dfsg-1~deb10u4fixed
bullseye (security), bullseye12.22.12~dfsg-1~deb11u4fixed
bookworm18.13.0+dfsg1-1fixed
bookworm (security)18.19.0+dfsg-6~deb12u1fixed
trixie18.19.1+dfsg-3fixed
sid18.20.1+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nodejssourceexperimental(unfixed)
nodejssource(unstable)(not affected)

Notes

- nodejs <not-affected> (Only affects 20.x and later)
https://nodejs.org/en/blog/vulnerability/february-2024-security-releases/#path-traversal-by-monkey-patching-buffer-internals-cve-2024-21896---high

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