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CVE Vulnerabilities

CVE-2009-2848

Improper Privilege Management

Published: Aug 18, 2009 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5.9 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:C
RedHat/V2
7.2 IMPORTANT
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2009-2848
CWEhttps://cwe.mitre.org/data/definitions/269.html

The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.

Weakness

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected Software

NameVendorStart VersionEnd Version
Linux_kernelLinux*2.6.29.5 (including)
Linux_kernelLinux2.6.30 (including)2.6.30 (including)
Linux_kernelLinux2.6.30-rc1 (including)2.6.30-rc1 (including)
Linux_kernelLinux2.6.30-rc2 (including)2.6.30-rc2 (including)
Linux_kernelLinux2.6.30-rc3 (including)2.6.30-rc3 (including)
Linux_kernelLinux2.6.30-rc4 (including)2.6.30-rc4 (including)
Linux_kernelLinux2.6.30-rc5 (including)2.6.30-rc5 (including)
Linux_kernelLinux2.6.30-rc6 (including)2.6.30-rc6 (including)
MRG for RHEL-5RedHatkernel-rt-0:2.6.24.7-132.el5rt*
Red Hat Enterprise Linux 3RedHatkernel-0:2.4.21-63.EL*
Red Hat Enterprise Linux 4RedHatkernel-0:2.6.9-89.0.11.EL*
Red Hat Enterprise Linux 5RedHatkernel-0:2.6.18-164.el5*
Red Hat Enterprise Linux 5.3.Z - Server OnlyRedHatkernel-0:2.6.18-128.8.1.el5*
LinuxUbuntuhardy*
LinuxUbuntuintrepid*
LinuxUbuntujaunty*
Linux-source-2.6.15Ubuntudapper*

Potential Mitigations

References

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