CVE-2017-18266
First published: Thu May 10 2018(Updated: )
The open_envvar function in xdg-open in xdg-utils before 1.1.3 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL, as demonstrated by %s in this environment variable.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xdg-utils | <=1.1.1-1<=1.1.0~rc1+git20111210-7.4 | 1.1.3-1 1.1.1-1+deb9u1 1.1.0~rc1+git20111210-7.4+deb8u1 |
| ubuntu/xdg-utils | <1.1.1-1ubuntu3.2 | 1.1.1-1ubuntu3.2 |
| ubuntu/xdg-utils | <1.1.2-1ubuntu2.2 | 1.1.2-1ubuntu2.2 |
| ubuntu/xdg-utils | <1.1.0~ | 1.1.0~ |
| ubuntu/xdg-utils | <1.1.1-1ubuntu1.16.04.3 | 1.1.1-1ubuntu1.16.04.3 |
| debian/xdg-utils | 1.1.3-4.1 | |
| Xdg-utils | <1.1.3 | |
| Debian | =7.0 | |
| Debian | =8.0 | |
| Debian | =9.0 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =17.10 | |
| Ubuntu | =18.04 |
Remedy
https://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=ce802d71c3466d1dbb24f2fe9b6db82a1f899bcb
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Reference Links
- https://bugs.freedesktop.org/show_bug.cgi?id=103807
- https://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=5647afb35e4bcba2060148e1a2a47bc43cc240f2
- https://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=ce802d71c3466d1dbb24f2fe9b6db82a1f899bcb
- https://cgit.freedesktop.org/xdg/xdg-utils/tree/ChangeLog
- https://usn.ubuntu.com/3650-1/
- https://lists.debian.org/debian-lts-announce/2018/05/msg00014.html
- https://www.debian.org/security/2018/dsa-4211
- https://launchpad.net/bugs/cve/CVE-2017-18266
- https://security-tracker.debian.org/tracker/CVE-2017-18266
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=898317
- https://ubuntu.com/security/notices/USN-3650-1
- https://www.cve.org/CVERecord?id=CVE-2017-18266
- https://nvd.nist.gov/vuln/detail/CVE-2017-18266
- https://ubuntu.com/security/CVE-2017-18266
Frequently Asked Questions
What is CVE-2017-18266?
CVE-2017-18266 is a vulnerability in xdg-utils before version 1.1.3 that allows remote attackers to conduct argument-injection attacks via a crafted URL.
What is the severity of CVE-2017-18266?
CVE-2017-18266 has a severity rating of 8.8 (high).
How does CVE-2017-18266 affect xdg-utils?
CVE-2017-18266 affects xdg-utils versions before 1.1.3.
How can I fix CVE-2017-18266?
To fix CVE-2017-18266, update xdg-utils to version 1.1.3 or later.
Where can I find more information about CVE-2017-18266?
You can find more information about CVE-2017-18266 at the following references: [Link 1](https://bugs.freedesktop.org/show_bug.cgi?id=103807), [Link 2](https://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=5647afb35e4bcba2060148e1a2a47bc43cc240f2), [Link 3](https://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=ce802d71c3466d1dbb24f2fe9b6db82a1f899bcb).
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