CVE-2009-2847

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.

CVSS v2.0 NVD

4.9 MEDIUMAV:L/AC:L/Au:N/C:C/I:N/A:N

EPSS

0.94% chance of exploitation in the next 30 days, 60th percentile

Published

2009-08-18

Updated

2024-08-07

Proof-of-concept exploits (1)

• http://www.exploit-db.com/exploits/9352

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/9352

Security advisories

• http://www.openwall.com/lists/oss-security/2009/08/04/1
• http://www.openwall.com/lists/oss-security/2009/08/05/1
• https://bugzilla.redhat.com/show_bug.cgi?id=515392
• http://www.redhat.com/support/errata/RHSA-2009-1438.html
• http://www.ubuntu.com/usn/USN-852-1
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html

References

• CVE Record
• NVD entry