CVE-2018-15857

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-15857
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-15857.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-15857
Downstream
Related
Published
2018-08-25T21:29:01Z
Modified
2025-09-19T09:25:45.447911Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file.

References

Affected packages

Git / github.com/xkbcommon/libxkbcommon

Affected ranges

Type
GIT
Repo
https://github.com/xkbcommon/libxkbcommon
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb

Affected versions

xkbcommon-0.*

xkbcommon-0.2.0
xkbcommon-0.3.0
xkbcommon-0.3.1
xkbcommon-0.3.2
xkbcommon-0.4.0
xkbcommon-0.4.1
xkbcommon-0.4.2
xkbcommon-0.4.3
xkbcommon-0.5.0
xkbcommon-0.6.0
xkbcommon-0.6.1
xkbcommon-0.7.0
xkbcommon-0.7.1
xkbcommon-0.7.2
xkbcommon-0.8.0

Database specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "function_hash": "246204298610063233728311461425499783433",
                "length": 421.0
            },
            "signature_type": "Function",
            "source": "https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb",
            "target": {
                "file": "src/xkbcomp/ast-build.c",
                "function": "ExprAppendMultiKeysymList"
            },
            "signature_version": "v1",
            "deprecated": false,
            "id": "CVE-2018-15857-bead969c"
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "157951890283692381345264618911296666620",
                    "175364020308458040961507052570546156758",
                    "75057826269913629386390900143212499585",
                    "256459290595105037938915078059512908386"
                ]
            },
            "signature_type": "Line",
            "source": "https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb",
            "target": {
                "file": "src/xkbcomp/ast-build.c"
            },
            "signature_version": "v1",
            "deprecated": false,
            "id": "CVE-2018-15857-d2756d45"
        }
    ]
}