CVE-2009-3640
The update_cr8_intercept function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc1 does not properly handle the absence of an Advanced Programmable Interrupt Controller (APIC), which allows local users to cause a denial…
Does this matter?
Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.
Description
The update_cr8_intercept function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc1 does not properly handle the absence of an Advanced Programmable Interrupt Controller (APIC), which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly gain privileges via a call to the kvm_vcpu_ioctl function.
- CVSS 2.0
- 4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 0.38% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=88c808fd42b53a7e01a2ac3253ef31fef74cb5af
- http://marc.info/?l=oss-security&m=125626965020571&w=2
- http://marc.info/?l=oss-security&m=125640417219385&w=2
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1Vendor Advisory
- http://www.securityfocus.com/bid/36805
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53947
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=88c808fd42b53a7e01a2ac3253ef31fef74cb5af
- http://marc.info/?l=oss-security&m=125626965020571&w=2
- http://marc.info/?l=oss-security&m=125640417219385&w=2
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1Vendor Advisory
- http://www.securityfocus.com/bid/36805
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53947
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.