Strix
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CVE-2013-6436

UnknownEPSS 0.35%

Last modified

CVE-2013-6436 is a vulnerability of currently unknown severity. The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.

Metrics

EPSS Probability
0.35%

27.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatLibvirt1.0.5
RedhatLibvirt1.0.5.1
RedhatLibvirt1.0.5.2
RedhatLibvirt1.0.5.3
RedhatLibvirt1.0.5.4
RedhatLibvirt1.0.5.5
RedhatLibvirt1.0.5.6
RedhatLibvirt1.0.6
RedhatLibvirt1.1.0
RedhatLibvirt1.1.1
RedhatLibvirt1.1.2
RedhatLibvirt1.1.3
RedhatLibvirt1.1.4
RedhatLibvirt1.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2013-6436?
The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.
How severe is CVE-2013-6436?
Severity scoring for CVE-2013-6436 is pending analysis. The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.
How do I fix CVE-2013-6436?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-6436?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST