Medium severity · published May 8, 2018
CVE-2018-6921
In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel…
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
11.0 before 11.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6921
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6921
Third Party Advisory
http://www.securityfocus.com/bid/104118
Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc
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