CVE-2015-0239

Medium

The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.

Package Linux Kernel
Published 2015-03-02
Last modified 2026-05-06
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

4.4

out of 10
Medium
Attack Vector
Local
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Vector string
AV:L/AC:M/Au:N/C:P/I:P/A:P

Weakness type

CWE-269

CVE-2015-0239 is classified as CWE-269

See CWE-269 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2015-0239 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2015-0239?

    CVE-2015-0239 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 . CVE-2015-0239 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2015-0239?

    CVE-2015-0239 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:P/I:P/A:P .

  • Is there a patch available for CVE-2015-0239?

    No patch is currently available for CVE-2015-0239. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2015-0239 actively exploited?

    No — CVE-2015-0239 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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