CVE-2019-13173
First published: Thu May 30 2019(Updated: )
fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink, will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| npm/fstream | <1.0.12 | 1.0.12 |
| debian/node-fstream | 1.0.12-4 1.0.12-7 | |
| Moonlight | <1.0.12 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00052.html
- https://github.com/npm/fstream/commit/6a77d2fa6e1462693cf8e46f930da96ec1b0bb22
- https://usn.ubuntu.com/4123-1/
- https://www.npmjs.com/advisories/886
- https://nvd.nist.gov/vuln/detail/CVE-2019-13173
- https://github.com/advisories/GHSA-xf7w-r453-m56c (Advisory)
- https://launchpad.net/bugs/cve/CVE-2019-13173
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13173
- https://security-tracker.debian.org/tracker/CVE-2019-13173
- https://ubuntu.com/security/CVE-2019-13173
Frequently Asked Questions
What is the severity of CVE-2019-13173?
CVE-2019-13173 has a medium severity level due to its potential for arbitrary file overwrites.
How do I fix CVE-2019-13173?
To fix CVE-2019-13173, upgrade fstream to version 1.0.12 or later.
What software is affected by CVE-2019-13173?
CVE-2019-13173 affects versions of fstream prior to 1.0.12, including node-fstream packages from Debian.
Is there a risk of data loss with CVE-2019-13173?
Yes, due to the arbitrary file overwrite vulnerability, there is a risk of data loss when extracting tarballs.
Can CVE-2019-13173 be exploited remotely?
Exploitation of CVE-2019-13173 requires local access to the system during the extraction of vulnerable tarballs.
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