CVE-2018-17294
First published: Fri Sep 21 2018(Updated: )
The matchCurrentInput function inside lou_translateString.c of Liblouis prior to 3.7 does not check the input string's length, allowing attackers to cause a denial of service (application crash via out-of-bounds read) by crafting an input file with certain translation dictionaries.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Liblouis Liblouis | <3.7.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| openSUSE Leap | =15.0 | |
| ubuntu/liblouis | <3.5.0-1ubuntu0.3 | 3.5.0-1ubuntu0.3 |
| ubuntu/liblouis | <3.7.0-1 | 3.7.0-1 |
| debian/liblouis | 3.16.0-1 3.24.0-1 3.30.0-2 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00038.html
- http://www.securityfocus.com/bid/105511
- https://github.com/liblouis/liblouis/commit/5e4089659bb49b3095fa541fa6387b4c40d7396e
- https://github.com/liblouis/liblouis/issues/635
- https://usn.ubuntu.com/3782-1/
- https://launchpad.net/bugs/cve/CVE-2018-17294
- https://security-tracker.debian.org/tracker/CVE-2018-17294
- https://ubuntu.com/security/notices/USN-3782-1
- https://www.cve.org/CVERecord?id=CVE-2018-17294
- https://nvd.nist.gov/vuln/detail/CVE-2018-17294
- https://ubuntu.com/security/CVE-2018-17294
Frequently Asked Questions
What is CVE-2018-17294?
CVE-2018-17294 is a vulnerability in Liblouis prior to version 3.7 that allows attackers to cause a denial of service (application crash) by crafting a malicious input file.
How severe is CVE-2018-17294 vulnerability?
The severity of CVE-2018-17294 is rated as medium with a CVSS score of 6.5.
How can the CVE-2018-17294 vulnerability be exploited?
CVE-2018-17294 can be exploited by crafting a special input file with certain translation dictionaries to trigger an out-of-bounds read, leading to a denial of service.
What versions of Liblouis are affected by CVE-2018-17294?
Liblouis versions prior to 3.7 are affected by CVE-2018-17294.
How can I fix CVE-2018-17294 vulnerability?
To fix CVE-2018-17294, update Liblouis to version 3.7.0 or later.
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