CVE-2018-17294

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-17294
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-17294.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-17294
Downstream
Related
Published
2018-09-21T07:29:00Z
Modified
2025-10-15T09:22:48.713679Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/liblouis/liblouis

Affected ranges

Type
GIT
Repo
https://github.com/liblouis/liblouis
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5e4089659bb49b3095fa541fa6387b4c40d7396e

Affected versions

v2.*

v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.3-1
v2.6.4
v2.6.5

v3.*

v3.0.0
v3.0.0.alpha1
v3.0.0.alpha1-1
v3.1.0
v3.2.0
v3.3.0
v3.4.0
v3.5.0
v3.6.0

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "id": "CVE-2018-17294-2f4dd9cf",
        "source": "https://github.com/liblouis/liblouis/commit/5e4089659bb49b3095fa541fa6387b4c40d7396e",
        "signature_version": "v1",
        "target": {
            "file": "liblouis/lou_translateString.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "293025375813258006096499344806738091290",
                "202534738202325194255144843342373936495",
                "316992701927929723134959434482094089898",
                "88845949797712808691018509916674065102"
            ]
        },
        "deprecated": false
    },
    {
        "signature_type": "Function",
        "id": "CVE-2018-17294-aec5fdcc",
        "source": "https://github.com/liblouis/liblouis/commit/5e4089659bb49b3095fa541fa6387b4c40d7396e",
        "signature_version": "v1",
        "target": {
            "function": "matchCurrentInput",
            "file": "liblouis/lou_translateString.c"
        },
        "digest": {
            "function_hash": "10198799392122735941565708499321028572",
            "length": 316.0
        },
        "deprecated": false
    }
]