Vulnerability Description
Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via MegaRAID Firmware Interface (MFI) commands with the sglist size set to a value over 2 Gb.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.8.1.1 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=765a707000e838c30b18d712f
- http://www.openwall.com/lists/oss-security/2017/02/01/19Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/02/14Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/95999Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1418342Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201702-28Third Party Advisory
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=765a707000e838c30b18d712f
- http://www.openwall.com/lists/oss-security/2017/02/01/19Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/02/14Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/95999Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1418342Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201702-28Third Party Advisory
FAQ
What is CVE-2017-5856?
CVE-2017-5856 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via Mega...
How severe is CVE-2017-5856?
CVE-2017-5856 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-5856?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux.