Vulnerability Description
Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.6.2 |
| Canonical | Ubuntu Linux | 12.04 |
| Oracle | Linux | 7 |
| Debian | Debian Linux | 8.0 |
| Redhat | Openstack | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Eus | 7.2 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.2 |
| Redhat | Enterprise Linux Server Tus | 7.2 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Redhat | Virtualization | 3.0 |
| Redhat | Enterprise Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a6b3167fa0e825aebb5a7cd8b437b6d41
- http://rhn.redhat.com/errata/RHSA-2016-1606.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1607.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1653.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1654.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1655.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1756.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1763.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/30/6Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/30/7Mailing ListThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.hThird Party Advisory
- http://www.securityfocus.com/bid/90948Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3047-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3047-2Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1340924Issue TrackingThird Party Advisory
FAQ
What is CVE-2016-5126?
CVE-2016-5126 is a vulnerability with a CVSS score of 7.8 (HIGH). Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via...
How severe is CVE-2016-5126?
CVE-2016-5126 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-5126?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Canonical Ubuntu Linux, Oracle Linux, Debian Debian Linux, Redhat Openstack.