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Vulnerability details: VCID-7wzz-2yyd-zyg7
Vulnerability ID VCID-7wzz-2yyd-zyg7
Aliases CVE-2018-18584
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18584.json
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02603 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
epss 0.02653 https://api.first.org/data/v1/epss?cve=CVE-2018-18584
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-18584
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-18584
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18584.json
https://api.first.org/data/v1/epss?cve=CVE-2018-18584
https://bugs.debian.org/911640
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18584
https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html
https://security.gentoo.org/glsa/201903-20
https://www.cabextract.org.uk/#changes
https://www.openwall.com/lists/oss-security/2018/10/22/1
https://www.starwindsoftware.com/security/sw-20181213-0001/
1644214 https://bugzilla.redhat.com/show_bug.cgi?id=1644214
911640 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911640
cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:cabextract_project:cabextract:*:*:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.3:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.3:alpha:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.4:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.4:alpha:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.5:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.5:alpha:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.6:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.6:alpha:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.7.1:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.7.1:alpha:*:*:*:*:*:*
cpe:2.3:a:libmspack_project:libmspack:0.7:alpha:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libmspack_project:libmspack:0.7:alpha:*:*:*:*:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:ga:*:*:ltss:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:suse:linux_enterprise_server:12:ga:*:*:ltss:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:ltss:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:ltss:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:ltss:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:ltss:*:*:*
CVE-2018-18584 https://nvd.nist.gov/vuln/detail/CVE-2018-18584
RHSA-2019:2049 https://access.redhat.com/errata/RHSA-2019:2049
USN-3814-1 https://usn.ubuntu.com/3814-1/
USN-3814-2 https://usn.ubuntu.com/3814-2/
USN-3814-3 https://usn.ubuntu.com/3814-3/
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-18584.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18584
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18584
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.85042
EPSS Score 0.02603
Published At Aug. 8, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:50.925324+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.22/community.json 37.0.0