CVE-2018-14682: cabextract_project cabextract Off-by-one Error
CVSS: 8.8v3.0HighModified
AliasesALPINE-CVE-2018-14682UBUNTU-CVE-2018-14682DEBIAN-CVE-2018-14682
Published 28-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-14682 is a high (CVSS 8.8) Off-by-one Error vulnerability in cabextract_project cabextract. EPSS estimates a 3.76% chance of exploitation in the next 30 days, higher than 89.7% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (NVD)EPSS score
3.76%
0%100%
Low · -0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 15 · Related 11Timeline
- 28-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.76%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
-0.05 pp
From 3.81% on 18-09-2026
18-09-202618-10-2026
EPSS score3.76%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat4 products
Alpine2 products
- clamav< 0.100.2-r0
- libmspack< 0.7.1_alpha-r0
Debian2 products
- libmspack< 0.7-1
- debian_linuxEOL8.0 | 9.0
Ubuntu2 products
- clamav< 0.100.1+dfsg-1ubuntu0.14.04.3
- libmspack< 0.4-1ubuntu0.1~esm2 | < 0.5-1ubuntu0.16.04.2 | < 0.6-3ubuntu0.1
Cabextract1 product
- libmspack0.0.20060920:alpha | 0.3:alpha | 0.4:alpha | 0.5:alpha | 0.6:alpha
Cabextract_project1 product
- cabextract≤ 1.5
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04
7 vendors · 13 products
References
22 links
- lists.debian.org/debian-lts-announce/2018/08/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory
- www.openwall.com/lists/oss-security/2018/07/26/1X Refsource MISCMailing ListThird Party AdvisoryREPORT
- github.com/kyz/libmspack/commit/4fd9ccaa54e1aebde1e4b95fb0163b699fd7bcc8X Refsource MISCPatchThird Party Advisory