CVE-2009-2847

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2009-2847
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-08-18 21:00:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

AV:L/AC:L/Au:N/C:C/I:N/A:N

Problem Types: NVD-CWE-noinfo | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None

AV:L/AC:L/Au:N/C:C/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linux Kernel 2.6.24.7 All All All
Application Linux Kernel 2.6.25.15 All All All
Hardware Linux Linux All All x64 All
Operating System Linux Linux Kernel 2.6 All All All
Operating System Linux Linux Kernel 2.6.0 All All All
Operating System Linux Linux Kernel 2.6.1 All All All
Operating System Linux Linux Kernel 2.6.10 All All All
Operating System Linux Linux Kernel 2.6.11 All All All
Operating System Linux Linux Kernel 2.6.11.1 All All All
Operating System Linux Linux Kernel 2.6.11.10 All All All
Operating System Linux Linux Kernel 2.6.11.11 All All All
Operating System Linux Linux Kernel 2.6.11.12 All All All
Operating System Linux Linux Kernel 2.6.11.2 All All All
Operating System Linux Linux Kernel 2.6.11.3 All All All
Operating System Linux Linux Kernel 2.6.11.4 All All All
Operating System Linux Linux Kernel 2.6.11.5 All All All
Operating System Linux Linux Kernel 2.6.11.6 All All All
Operating System Linux Linux Kernel 2.6.11.7 All All All
Operating System Linux Linux Kernel 2.6.11.8 All All All
Operating System Linux Linux Kernel 2.6.11.9 All All All
Operating System Linux Linux Kernel 2.6.12 All All All
Operating System Linux Linux Kernel 2.6.12.1 All All All
Operating System Linux Linux Kernel 2.6.12.2 All All All
Operating System Linux Linux Kernel 2.6.12.3 All All All
Operating System Linux Linux Kernel 2.6.12.4 All All All
Operating System Linux Linux Kernel 2.6.12.5 All All All
Operating System Linux Linux Kernel 2.6.12.6 All All All
Operating System Linux Linux Kernel 2.6.13 All All All
Operating System Linux Linux Kernel 2.6.13.1 All All All
Operating System Linux Linux Kernel 2.6.13.2 All All All
Operating System Linux Linux Kernel 2.6.13.3 All All All
Operating System Linux Linux Kernel 2.6.13.4 All All All
Operating System Linux Linux Kernel 2.6.13.5 All All All
Operating System Linux Linux Kernel 2.6.14 All All All
Operating System Linux Linux Kernel 2.6.14.1 All All All
Operating System Linux Linux Kernel 2.6.14.2 All All All
Operating System Linux Linux Kernel 2.6.14.3 All All All
Operating System Linux Linux Kernel 2.6.14.4 All All All
Operating System Linux Linux Kernel 2.6.14.5 All All All
Operating System Linux Linux Kernel 2.6.14.6 All All All
Operating System Linux Linux Kernel 2.6.14.7 All All All
Operating System Linux Linux Kernel 2.6.15 All All All
Operating System Linux Linux Kernel 2.6.15.1 All All All
Operating System Linux Linux Kernel 2.6.15.2 All All All
Operating System Linux Linux Kernel 2.6.15.3 All All All
Operating System Linux Linux Kernel 2.6.15.4 All All All
Operating System Linux Linux Kernel 2.6.15.5 All All All
Operating System Linux Linux Kernel 2.6.15.6 All All All
Operating System Linux Linux Kernel 2.6.15.7 All All All
Operating System Linux Linux Kernel 2.6.16 All All All
Operating System Linux Linux Kernel 2.6.16.1 All All All
Operating System Linux Linux Kernel 2.6.16.10 All All All
Operating System Linux Linux Kernel 2.6.16.11 All All All
Operating System Linux Linux Kernel 2.6.16.12 All All All
Operating System Linux Linux Kernel 2.6.16.13 All All All
Operating System Linux Linux Kernel 2.6.16.14 All All All
Operating System Linux Linux Kernel 2.6.16.15 All All All
Operating System Linux Linux Kernel 2.6.16.16 All All All
Operating System Linux Linux Kernel 2.6.16.17 All All All
Operating System Linux Linux Kernel 2.6.16.18 All All All
Operating System Linux Linux Kernel 2.6.16.19 All All All
Operating System Linux Linux Kernel 2.6.16.2 All All All
Operating System Linux Linux Kernel 2.6.16.20 All All All
Operating System Linux Linux Kernel 2.6.16.21 All All All
Operating System Linux Linux Kernel 2.6.16.22 All All All
Operating System Linux Linux Kernel 2.6.16.23 All All All
Operating System Linux Linux Kernel 2.6.16.24 All All All
Operating System Linux Linux Kernel 2.6.16.25 All All All
Operating System Linux Linux Kernel 2.6.16.26 All All All
Operating System Linux Linux Kernel 2.6.16.27 All All All
Operating System Linux Linux Kernel 2.6.16.28 All All All
Operating System Linux Linux Kernel 2.6.16.29 All All All
Operating System Linux Linux Kernel 2.6.16.3 All All All
Operating System Linux Linux Kernel 2.6.16.30 All All All
Operating System Linux Linux Kernel 2.6.16.31 All All All
Operating System Linux Linux Kernel 2.6.16.31 -rc1 All All
Operating System Linux Linux Kernel 2.6.16.31 -rc2 All All
Operating System Linux Linux Kernel 2.6.16.31 -rc3 All All
Operating System Linux Linux Kernel 2.6.16.31 -rc4 All All
Operating System Linux Linux Kernel All -rc5 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Red Hat update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Red Hat update for kernel - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
[SECURITY] Fedora 11 Update: kernel-2.6.29.6-217.2.16.fc11 af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Ubuntu update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Fedora update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Linux Kernel <= 2.6.31-rc5 sigaltstack 4-Byte Stack Disclosure Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
VMware ESX and vMA Update for Multiple Packages - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
oss-security - Re: CVE request - kernel: information leak in sigaltstack af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
USN-852-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
oss-security - Re: CVE request - kernel: information leak in sigaltstack af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Linux Kernel "sigaltstack()" Information Disclosure - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
rhn.redhat.com | Red Hat Support af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
oss-security - CVE request - kernel: information leak in sigaltstack af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
VMSA-2009-0016.1 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Bug 515392 – CVE-2009-2847 kernel: information leak in sigaltstack af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2009-09-15Tomas HogerThis issue has been rated as having moderate security impact. It was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG: http://rhn.redhat.com/cve/CVE-2009-2847.html This issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report