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CVE-2015-3214

6.9 · MEDIUM

The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbit…

Published Aug 31, 2015qemuCWE-119EPSS 1.59%

Overview

CVE-2015-3214 is a medium-severity vulnerability affecting qemu qemu. It was published on August 31, 2015 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.

Remediation

Check the references section for vendor advisories and patches from qemu. Update qemu to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
qemuqemu0Affected
linuxlinux_kernel0Affected
lenovoemc_px12-400r_ivx>= 0, < 1.0.10.33264Affected
lenovoemc_px12-450r_ivx>= 0, < 1.0.10.33264Affected

References

Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924Refmirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33Refrhn.redhat.com/errata/RHSA-2015-1507.htmlRefrhn.redhat.com/errata/RHSA-2015-1508.htmlRefrhn.redhat.com/errata/RHSA-2015-1512.htmlRefwww.debian.org/security/2015/dsa-3348Refwww.openwall.com/lists/oss-security/2015/06/25/7Refwww.securityfocus.com/bid/75273Refwww.securitytracker.com/id/1032598Refbugzilla.redhat.com/show_bug.cgi?id=1229640

How CyberStrike helps

Frequently asked questions

What is CVE-2015-3214?

CVE-2015-3214 is a medium-severity vulnerability affecting qemu qemu. It was published on August 31, 2015 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

How severe is CVE-2015-3214?

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-3214?

Check the references section for vendor advisories and patches from qemu. Update qemu to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-3214?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-3214 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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