Vulnerability Description
Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | < 2.0.0 |
| Redhat | Virtualization | 3.0 |
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Eus | 6.5 |
| Redhat | Enterprise Linux Openstack Platform | 5 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server Aus | 6.5 |
| Redhat | Enterprise Linux Server Tus | 6.5 |
| Redhat | Enterprise Linux Workstation | 6.0 |
Related Weaknesses (CWE)
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a7
- http://rhn.redhat.com/errata/RHSA-2014-0420.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-0421.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/03/26/8Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1078212Issue TrackingPatchThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.htmlMailing ListPatchThird Party Advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a7
- http://rhn.redhat.com/errata/RHSA-2014-0420.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-0421.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/03/26/8Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1078212Issue TrackingPatchThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.htmlMailing ListPatchThird Party Advisory
FAQ
What is CVE-2014-0148?
CVE-2014-0148 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_se...
How severe is CVE-2014-0148?
CVE-2014-0148 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-0148?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Redhat Virtualization, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Openstack Platform.