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Vulnerability record · CVE-2015-3214 · published 31 August 2015

CVE-2015-3214: Qemu memory buffer overflow vulnerability

Qemu · Qemu

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.

6.9 CVSS 2.0 Medium EPSS 1.6% · top 25.3% CWE-119 · Memory buffer overflow
6.9CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
19Affected product versions listed by NVD
34References
17 Jun 2026Last modified by NVD

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.

AV:L/AC:M/Au:N/C:C/I:C/A:C

Affected products

19 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924 PatchVendor Advisory
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33 Broken LinkVendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1507.html Issue TrackingThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1508.html Issue TrackingThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1512.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3348 Issue TrackingThird Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/25/7 Mailing List
http://www.securityfocus.com/bid/75273 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1032598 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1229640 Issue Tracking
https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924 PatchThird Party Advisory
https://security.gentoo.org/glsa/201510-02 Issue TrackingThird Party Advisory
https://support.lenovo.com/product_security/qemu Third Party Advisory
https://support.lenovo.com/us/en/product_security/qemu Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13 Third Party Advisory
https://www.exploit-db.com/exploits/37990/ Third Party AdvisoryVDB Entry
https://www.mail-archive.com/qemu-devel%40nongnu.org/msg304138.html
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924 PatchVendor Advisory
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33 Broken LinkVendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1507.html Issue TrackingThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1508.html Issue TrackingThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1512.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3348 Issue TrackingThird Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/25/7 Mailing List
http://www.securityfocus.com/bid/75273 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1032598 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1229640 Issue Tracking
https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924 PatchThird Party Advisory
https://security.gentoo.org/glsa/201510-02 Issue TrackingThird Party Advisory
https://support.lenovo.com/product_security/qemu Third Party Advisory
https://support.lenovo.com/us/en/product_security/qemu Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13 Third Party Advisory
https://www.exploit-db.com/exploits/37990/ Third Party AdvisoryVDB Entry
https://www.mail-archive.com/qemu-devel%40nongnu.org/msg304138.html

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Source: NIST National Vulnerability Database (record CVE-2015-3214), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.