Medium severity · published Aug 1, 2018
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 incorrect I/O port access control on the i386 architecture
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openbsd · Openbsd
6.2; 6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14775
Issue Tracking
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c
Patch
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c.diff?r1=1.37&r2=1.37.8.1&f=h
Third Party Advisory
http://www.securitytracker.com/id/1041550
Patch
https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig
Patch
https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig
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