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.
CVE-2017-12192 - Medium Severity Vulnerability
Apache Software Foundation (ASF)
Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v3.0/?wsslib=linux
Found in HEAD commit: 22324ae9738f0a1eeb173ff05137c8317c350189
Found in base branch: master
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.
Publish Date: 2017-10-12
URL: CVE-2017-12192
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2017-10-12
Fix Resolution: v4.14-rc3
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