CVE-2018-18584

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2018-18584
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18584.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-18584
Downstream
Related
Published
2018-10-23T02:29:00.263Z
Modified
2026-07-08T14:15:00.669427Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:*"
            ],
            "source": "CPE_RANGE",
            "extracted_events": [
                {
                    "fixed": "1.8"
                }
            ],
            "vendor_product": "cabextract_project:cabextract"
        },
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "12.04"
                },
                {
                    "last_affected": "12.04"
                },
                {
                    "introduced": "14.04"
                },
                {
                    "last_affected": "14.04"
                },
                {
                    "introduced": "16.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "introduced": "18.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "introduced": "18.10"
                },
                {
                    "last_affected": "18.10"
                }
            ],
            "vendor_product": "canonical:ubuntu_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                }
            ],
            "vendor_product": "debian:debian_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                }
            ],
            "vendor_product": "redhat:enterprise_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:*",
                "cpe:2.3:o:suse:linux_enterprise_server:12:ga:*:*:ltss:*:*:*",
                "cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:ltss:*:*:*",
                "cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:ltss:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "11-sp3"
                },
                {
                    "last_affected": "11-sp3"
                },
                {
                    "introduced": "12-ga"
                },
                {
                    "last_affected": "12-ga"
                },
                {
                    "introduced": "12-sp1"
                },
                {
                    "last_affected": "12-sp1"
                },
                {
                    "introduced": "12-sp2"
                },
                {
                    "last_affected": "12-sp2"
                }
            ],
            "vendor_product": "suse:linux_enterprise_server"
        }
    ]
}
References

Affected packages

Git / github.com/kyz/libmspack

Affected ranges

Type
GIT
Repo
https://github.com/kyz/libmspack
Events
Introduced
a22627dd5180e0ce9c558d0c10b174c760085f57
Last affected
846db1c3419eca65f8d09b5452063870a65ed9f0
Fixed
40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:libmspack_project:libmspack:0.3:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:libmspack_project:libmspack:0.4:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:libmspack_project:libmspack:0.5:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:libmspack_project:libmspack:0.6:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:libmspack_project:libmspack:0.7:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:libmspack_project:libmspack:0.7.1:alpha:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.3-alpha"
        },
        {
            "last_affected": "0.3-alpha"
        },
        {
            "introduced": "0.4-alpha"
        },
        {
            "last_affected": "0.4-alpha"
        },
        {
            "introduced": "0.5-alpha"
        },
        {
            "last_affected": "0.5-alpha"
        },
        {
            "introduced": "0.6-alpha"
        },
        {
            "last_affected": "0.6-alpha"
        },
        {
            "introduced": "0.7-alpha"
        },
        {
            "last_affected": "0.7-alpha"
        },
        {
            "introduced": "0.7.1-alpha"
        },
        {
            "last_affected": "0.7.1-alpha"
        }
    ]
}

Affected versions

0.*
0.3-alpha
0.4-alpha
0.5-alpha
0.6-alpha
0.7-alpha
0.7.1-alpha
1.*
1.7
v0.*
v0.3alpha
v0.4alpha
v0.5alpha
v0.6alpha
v0.7.1alpha
v0.7alpha
v1.*
v1.4
v1.5

Database specific

vanir_signatures_modified 
"2026-07-08T14:15:00Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18584.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "target": {
            "file": "libmspack/mspack/cab.h"
        },
        "id": "CVE-2018-18584-3cecbcbb",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "158240116603677036819695488739621403627",
                "269271669553547603752875556704960232567",
                "37544086892789893982291370903966203759",
                "169871899111443360361982281484202037437",
                "257408676381020978427987901723890493853",
                "293194494984887529254768129453583513323",
                "143245517895524289051156808528142211988",
                "161511177930475588070979568568117240902"
            ]
        },
        "source": "https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2",
        "signature_type": "Line"
    }
]