How severe is CVE-2013-2239?

CVE-2013-2239 has a CVSS 2.0 base score of 4.7, rated medium severity.

Is CVE-2013-2239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2239?

CVE-2013-2239 affects Openvz Vzkernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-2239?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-2239 published?

CVE-2013-2239 was published on 2013-11-12 and last updated on 2026-06-16.

CVE-2013-2239

CVE-2013-2239 is a medium-severity vulnerability in Openvz Vzkernel with a CVSS 2.0 base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.7)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Openvz Vzkernel
Published: 2013-11-12
Last modified: 2026-06-16

Description

vzkernel before 042stab080.2 in the OpenVZ modification for the Linux kernel 2.6.32 does not initialize certain length variables, which allows local users to obtain sensitive information from kernel stack memory via (1) a crafted ploop driver ioctl call, related to the ploop_getdevice_ioc function in drivers/block/ploop/dev.c, or (2) a crafted quotactl system call, related to the compat_quotactl function in fs/quota/quota.c.

Frequently asked questions

What is CVE-2013-2239?: vzkernel before 042stab080.2 in the OpenVZ modification for the Linux kernel 2.6.32 does not initialize certain length variables, which allows local users to obtain sensitive information from kernel stack memory via (1) a crafted ploop driver ioctl call, related to the ploop_getdevice_ioc function in drivers/block/ploop/dev.c, or (2) a crafted quotactl system call, related to the compat_quotactl function in fs/quota/quota.c.
How severe is CVE-2013-2239?: CVE-2013-2239 has a CVSS 2.0 base score of 4.7, rated medium severity.
Is CVE-2013-2239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2239?: CVE-2013-2239 affects Openvz Vzkernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-2239?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2239 published?: CVE-2013-2239 was published on 2013-11-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:openvz:vzkernel:2.6.32:*:*:*:*:*:*:*

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