CVE-2015-8743

Impact:
Low
Public Date:
2015-12-30
CWE:
CWE-787
Bugzilla:
1264929: CVE-2015-8743 Qemu: net: ne2000: OOB memory access in ioport r/w functions
An out-of-bounds read-write access flaw was found in the QEMU emulator built with NE2000-device emulation support. The flaw occurred while performing 'ioport' read-write operations. A privileged (CAP_SYS_RAWIO) user or process could exploit the flaw to leak or corrupt QEMU memory bytes.

Find out more about CVE-2015-8743 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue affects the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7.

This issue does not affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This has been rated as having Low security impact and is not currently
planned to be addressed in future updates. For additional information, refer
to the Red Hat Enterprise Linux Life Cycle:
https://access.redhat.com/support/policy/updates/errata/

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 3.8
Base Metrics AV:A/AC:M/Au:S/C:P/I:P/A:N
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) qemu-kvm-rhev Will not fix
Red Hat Enterprise Linux 7 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux 7 qemu-kvm Not affected
Red Hat Enterprise Linux 6 qemu-kvm Will not fix
Red Hat Enterprise Linux 5 kvm Will not fix
Red Hat Enterprise Linux 5 xen Will not fix

Acknowledgements

Red Hat would like to thank Ling Liu of Qihoo 360 Inc. for reporting this issue.

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