CVE-2018-18584: cabextract_project cabextract Out-of-bounds Write
CVSS: 6.5v3.1MediumModified
AliasesALPINE-CVE-2018-18584UBUNTU-CVE-2018-18584DEBIAN-CVE-2018-18584
Published 23-10-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-18584 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in cabextract_project cabextract. EPSS estimates a 3.09% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
3.09%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 8 · Related 5Timeline
- 23-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
6 scores · 4 sources · 3 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 6.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.09%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.09% on 18-09-2026
18-09-202618-10-2026
EPSS score3.09%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian3 products
- cabextract< 1.4-5
- libmspack< 0.8-1
- debian_linuxEOL8.0
Ubuntu3 products
- cabextract< 1.4-4ubuntu0.1~esm1
- clamav< 0.100.2+dfsg-1ubuntu0.14.04.2
- libmspack< 0.4-1ubuntu0.1~esm1 | < 0.5-1ubuntu0.16.04.3 | < 0.6-3ubuntu0.2
Alpine2 products
- cabextract< 1.8-r0
- libmspack< 0.8_alpha-r0
Cabextract_project1 product
- cabextract< 1.8
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 18.10
Libmspack_project1 product
- libmspack0.3:alpha | 0.4:alpha | 0.5:alpha | 0.6:alpha | 0.7:alpha | 0.7.1:alpha
Redhat1 product
- enterprise_linuxEOL7.0
Starwindsoftware1 product
Suse1 product
- linux_enterprise_server11:sp3 | 12:ga | 12:sp1 | 12:sp2
9 vendors · 14 products
References
18 linksShow all 18 references
- www.starwindsoftware.com/security/sw-20181213-0001/Third Party Advisory
