MEDIUM
CVE-2018-18585
CWE-476Published: October 23, 2018· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official 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).
Technical Analysis
CVE-2018-18585 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
kyzer1 product(s)
libmspack
Red Hat3 product(s)
enterprise linux desktopenterprise linux serverenterprise linux workstation
starwindsoftware1 product(s)
starwind virtual san
SUSE1 product(s)
linux enterprise server
Source: NVD CPE · 17 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://bugs.debian.org/911637
ADVISORYhttps://usn.ubuntu.com/3814-1/
ADVISORYhttps://usn.ubuntu.com/3814-2/
ADVISORYhttps://usn.ubuntu.com/3814-3/
ADVISORYhttps://bugs.debian.org/911637
ADVISORYhttps://usn.ubuntu.com/3814-1/
ADVISORYhttps://usn.ubuntu.com/3814-2/
ADVISORYhttps://usn.ubuntu.com/3814-3/
All References (20)
→
https://access.redhat.com/errata/RHSA-2019:2049Third Party Advisory
→
https://bugs.debian.org/911637Issue Tracking · Mailing List · Third Party Advisory
→
https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4fExploit · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201903-20Third Party Advisory
→
https://usn.ubuntu.com/3814-1/Third Party Advisory
→
https://usn.ubuntu.com/3814-2/Third Party Advisory
→
https://usn.ubuntu.com/3814-3/Third Party Advisory
→
https://www.openwall.com/lists/oss-security/2018/10/22/1Mailing List · Patch · Third Party Advisory
→
https://www.starwindsoftware.com/security/sw-20181213-0002/Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:2049Third Party Advisory
→
https://bugs.debian.org/911637Issue Tracking · Mailing List · Third Party Advisory
→
https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4fExploit · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201903-20Third Party Advisory
Quick Facts
CVE IDCVE-2018-18585
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected6 vendor(s)
PublishedOct 23, 2018
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-18585 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.