CVE-2009-2847

MediumCVSS 4.9/10Last modified Jun 16, 2026

Description

The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.

Metrics

CVSS 2.0 4.9/10AV:L/AC:L/Au:N/C:C/I:N/A:N

Affected software

No affected versions have been published.

Timeline

Published: Aug 18, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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