Kernel 2.6.32 and prior [Medium]

By Security Team on Monday, November 2nd, 2009 in Security Notifications | Related Software Packages:

Affects:

  • Kernel 2.6.32 and prior [Medium]

Description

The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the Linux kernel before 2.6.32-rc5 does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (OOPS) via vectors involving calls to this function without specifying a keyring by ID, as demonstrated by a series of keyctl request2 and keyctl list commands.

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CVE Identifier: CVE-2009-3624
Severity: Medium

National Vulnerabilities Database

NIST National Vulnerabilities Database

Security Team

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