CVEvulnerability

CVE-2009-2847

4.9 MEDIUM Published 2009-08-18 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-08-18
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:C/I:N/A:N

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.

Affected configurations

• linux kernel 2.6.24.7 • linux kernel 2.6.25.15 • linux linux kernel (<= 2.6.16.31) • linux linux kernel 2.6 • linux linux kernel 2.6.0 • linux linux kernel 2.6.1 • linux linux kernel 2.6.10 • linux linux kernel 2.6.11 • linux linux kernel 2.6.11.1 • linux linux kernel 2.6.11.2 • linux linux kernel 2.6.11.3 • linux linux kernel 2.6.11.4 • linux linux kernel 2.6.11.5 • linux linux kernel 2.6.11.6 • linux linux kernel 2.6.11.7 • linux linux kernel 2.6.11.8 • linux linux kernel 2.6.11.9 • linux linux kernel 2.6.11.10 • linux linux kernel 2.6.11.11 • linux linux kernel 2.6.11.12 • linux linux kernel 2.6.12 • linux linux kernel 2.6.12.1 • linux linux kernel 2.6.12.2 • linux linux kernel 2.6.12.3 • linux linux kernel 2.6.12.4 • linux linux kernel 2.6.12.5 • linux linux kernel 2.6.12.6 • linux linux kernel 2.6.13 • linux linux kernel 2.6.13.1 • linux linux kernel 2.6.13.2 • linux linux kernel 2.6.13.3 • linux linux kernel 2.6.13.4 • linux linux kernel 2.6.13.5 • linux linux kernel 2.6.14 • linux linux kernel 2.6.14.1 • linux linux kernel 2.6.14.2 • linux linux kernel 2.6.14.3 • linux linux kernel 2.6.14.4 • linux linux kernel 2.6.14.5 • linux linux kernel 2.6.14.6 • linux linux kernel 2.6.14.7 • linux linux kernel 2.6.15 • linux linux kernel 2.6.15.1 • linux linux kernel 2.6.15.2 • linux linux kernel 2.6.15.3 • linux linux kernel 2.6.15.4 • linux linux kernel 2.6.15.5 • linux linux kernel 2.6.15.6 • linux linux kernel 2.6.15.7 • linux linux kernel 2.6.16 • linux linux kernel 2.6.16.1 • linux linux kernel 2.6.16.2 • linux linux kernel 2.6.16.3 • linux linux kernel 2.6.16.10 • linux linux kernel 2.6.16.11 • linux linux kernel 2.6.16.12 • linux linux kernel 2.6.16.13 • linux linux kernel 2.6.16.14 • linux linux kernel 2.6.16.15 • linux linux kernel 2.6.16.16 … and 15 more

References