CVE-2018-18585
MEDIUMCVSS 4.3/10EPSS 3.06%
Last modified
CVE-2018-18585 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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).. EPSS estimates a 3.06% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Kyzer | Libmspack | 0.3 | Alpha |
| Kyzer | Libmspack | 0.4 | Alpha |
| Kyzer | Libmspack | 0.5 | Alpha |
| Kyzer | Libmspack | 0.6 | Alpha |
| Kyzer | Libmspack | 0.7 | Alpha |
| Debian | Debian Linux | 8.0 | — |
| Redhat | Enterprise Linux Desktop | 7.0 | — |
| Redhat | Enterprise Linux Server | 7.0 | — |
| Redhat | Enterprise Linux Workstation | 7.0 | — |
| Canonical | Ubuntu Linux | 12.04 | — |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Canonical | Ubuntu Linux | 18.04 | — |
| Canonical | Ubuntu Linux | 18.10 | — |
| Suse | Linux Enterprise Server | 11 | Sp3 |
| Suse | Linux Enterprise Server | 12 | Ga |
| Starwindsoftware | Starwind Virtual San | All versions | — |
References
- 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
- 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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-18585?
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).
How severe is CVE-2018-18585?
CVE-2018-18585 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 3.06% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18585?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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