Home/CVE/tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorre
CVE

CVE-2018-14775

tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorre

tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorrect I/O port access control on the i386 architecture.

MEDIUM · CVSS 5.5 EPSS 0.00046
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
openbsdall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Aug 2018 · 06:29 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.cIssue TrackingPatchVendor Advisory
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c.diff?r1=1.37&r2=1.37.8.1&f=hPatchVendor Advisory
http://www.securitytracker.com/id/1041550Third Party AdvisoryVDB Entry
https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sigPatchVendor Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sigPatchVendor Advisory
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