kernel/auditsc.c in the Linux kernel through 3.14.5, when CONFIG_AUDITSYSCALL is enabled with certain syscall rules, allows local users to obtain potentially sensitive single-bit values from kernel memory or cause a denial of service (OOPS) via a large value of a syscall number.
CVSS Severity (version 2.0):
Impact Subscore: 4.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows disruption of service
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[linux-kernel] 20140528 [PATCH 1/2] auditsc: audit_krule mask accesses need bounds checking
[oss-security] 20140529 Re: CVE request: Linux kernel DoS with syscall auditing