Denial of Service Vulnerability in Linux Kernel Key Management Subcomponent

CVE-2017-12192 · MEDIUM Severity

AV:L/AC:L/AU:N/C:N/I:N/A:C

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.

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