PT-2009-5912 · Linux · Linux Kernel

Eugene Teo · Published 2009-10-29 · Updated 2023-02-13 · CVE-2009-3640

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.32-rc1

Description The issue is related to the KVM subsystem in the Linux kernel, where the update cr8 intercept function does not properly handle the absence of an Advanced Programmable Interrupt Controller (APIC). This can allow local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, or possibly gain privileges via a call to the kvm vcpu ioctl function.

Recommendations For Linux kernel versions prior to 2.6.32-rc1, update to version 2.6.32-rc1 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2009-3640

Affected Products

Linux Kernel

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2009-3640 · Security Note
• http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1 · Vendor Advisory
• http://securityfocus.com/bid/36805 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/53947 · Note
• http://marc.info/?l=oss-security&m=125640417219385&w=2 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=88c808fd42b53a7e01a2ac3253ef31fef74cb5af · Note
• http://marc.info/?l=oss-security&m=125626965020571&w=2 · Note