CVE-2018-18585: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 4.3v3.1MediumModified
AliasesALPINE-CVE-2018-18585UBUNTU-CVE-2018-18585DEBIAN-CVE-2018-18585
Published 23-10-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-18585 is a medium (CVSS 4.3) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.3/10
010
Medium · v3.1 (NVD)EPSS score
3.08%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 23-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.08%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.08% on 18-09-2026
18-09-202618-10-2026
EPSS score3.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibmspack
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Redhat3 products
Debian2 products
- libmspack< 0.8-1
- debian_linuxEOL8.0
Ubuntu2 products
- clamav< 0.100.2+dfsg-1ubuntu0.14.04.2
- libmspack< 0.4-1ubuntu0.1~esm2 | < 0.5-1ubuntu0.16.04.3 | < 0.6-3ubuntu0.2
Alpine1 product
- libmspack< 0.8_alpha-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 18.10
Kyzer1 product
- libmspack0.3:alpha | 0.4:alpha | 0.5:alpha | 0.6:alpha | 0.7:alpha
Starwindsoftware1 product
Suse1 product
- linux_enterprise_server11:sp3 | 12:ga | 12:sp1 | 12:sp2
8 vendors · 12 products
References
18 links
- www.starwindsoftware.com/security/sw-20181213-0002/Third Party Advisory