CVE-2009-2768

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Summary

CVECVE-2009-2768
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-08-14 15:16:27 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-476 | CWE-824 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 2.6.31 rc1 All All
Operating System Linux Linux Kernel 2.6.31 rc2 All All
Operating System Linux Linux Kernel 2.6.31 rc3 All All
Operating System Linux Linux Kernel 2.6.31 rc4 All All
Operating System Linux Linux Kernel 2.6.31 rc5 All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
oss-security - CVE request: kernel: flat: fix uninitialized ptr with shared libs af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
thread.gmane.org | 522: Connection timed out af854a3a-2127-422b-91ae-364da2661108 thread.gmane.org Broken Link
404: File not found af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Broken Link
Linux Kernel Multiple Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
git.kernel.org af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Broken Link
404: File not found af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Broken Link
LKML: Bernd Schmidt: Fix for shared flat binary format in 2.6.30 af854a3a-2127-422b-91ae-364da2661108 lkml.org Mailing List, Patch, Third Party Advisory
mandriva.com af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Broken Link
Linux Kernel 'binfmt_flat.c' NULL Pointer Dereference Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Broken Link, Third Party Advisory, VDB Entry
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 Hat2009-08-18Mark J CoxNot vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for flat binary support, and additionally this issue only affected kernels version 2.6.29-rc1 and later.

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