CVE-2016-7907: Input Validation
First published: Wed Oct 05 2016(Updated: )
The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.8.1.1 | |
| QEMU KVM | =2.9.0-rc0 | |
| QEMU KVM | =2.9.0-rc1 | |
| QEMU KVM | =2.9.0-rc2 | |
| QEMU KVM | =2.9.0-rc3 | |
| QEMU KVM | =2.9.0-rc4 | |
| QEMU KVM | =2.9.0-rc5 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
- http://www.openwall.com/lists/oss-security/2016/10/03/1
- http://www.openwall.com/lists/oss-security/2016/10/03/4
- http://www.securityfocus.com/bid/93274
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html
- https://security.gentoo.org/glsa/201611-11
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/author
- agent/remedy
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/qemu
- canonical/qemu kvm
- version/qemu kvm/2.8.1.1
- version/qemu kvm/2.9.0-rc0
- version/qemu kvm/2.9.0-rc1
- version/qemu kvm/2.9.0-rc2
- version/qemu kvm/2.9.0-rc3
- version/qemu kvm/2.9.0-rc4
- version/qemu kvm/2.9.0-rc5