CVE-2018-7166

NameCVE-2018-7166
DescriptionIn all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `Buffer.alloc()` to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying `encoding` can be passed as a number, this is misinterpreted by `Buffer's` internal "fill" method as the `start` to a fill operation. This flaw may be abused where `Buffer.alloc()` arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nodejs (PTS)jessie0.10.29~dfsg-2fixed
stretch4.8.2~dfsg-1fixed
buster, sid8.11.2~dfsg-1fixed

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

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

Notes

- nodejs <not-affected> (Only affects 10.x and later)
https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
https://github.com/nodejs/node/commit/40a7beeddac9b9ec9ef5b49157daaf8470648b08

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