MEDIUM
CVE-2013-2239
CWE-264Published: November 12, 2013· Updated: Jun 16, 2026
4.7
CVSS v3.1
Official 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.
Technical Analysis
CVE-2013-2239 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityNone
AvailabilityNone
AV:L/AC:M/Au:N/C:C/I:N/A:N
Affected Vendors & Products
openvz1 product(s)
vzkernel
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (10)
Quick Facts
CVE IDCVE-2013-2239
CVSS Score4.7 / 10
SeverityMEDIUM
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedNov 12, 2013
Related CVEs (CWE-264)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2013-2239 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.