CVE-2017-12192
low-risk
Published 2017-10-12
The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.
Do I need to act?
-
0.11% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10
Medium
LOCAL
/ LOW complexity
Affected Products (1)
Affected Vendors
References (16)
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1493435
Mailing List
https://lkml.org/lkml/2017/9/18/764
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1493435
Mailing List
https://lkml.org/lkml/2017/9/18/764
23
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal