Out-of-bounds Read in Liblouis
CVE-2018-17294
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Liblouis
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- openSUSE Leap — versions 15.0
Weakness classification (CWE)
References
- github.com/liblouis/liblouis/issues/635 (Exploit, Patch, Third Party Advisory)
- usn.ubuntu.com/3782-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/105511 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/liblouis/liblouis/commit/5e4089659bb49b3095fa541fa6387b4c40d7396e (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00038.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-17294?
- CVE-2018-17294 is a medium-severity vulnerability in Liblouis, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-09-21.
- How severe is CVE-2018-17294?
- Medium severity. CVSS v3 base score is 6.5 out of 10.