CVE-2015-5158

Impact:
Moderate
Public Date:
2015-07-22
CWE:
CWE-121
Bugzilla:
1244332: CVE-2015-5158 Qemu: scsi stack buffer overflow
A flaw has been discovered in the QEMU emulator built with SCSI-device emulation support. The emulator is vulnerable to a stack buffer overflow issue, which can occur while parsing a SCSI command descriptor block with an invalid operation code. A privileged(CAP_SYS_RAWIO) user inside a guest could use this flaw to crash the QEMU instance resulting in a denial-of-service (DoS) attack.

Find out more about CVE-2015-5158 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.

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

CVSS v2 metrics

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

Base Score 4.4
Base Metrics AV:L/AC:M/Au:S/C:N/I:N/A:C
Access Vector Local
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

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 Not affected
Red Hat Enterprise Linux 7 qemu-kvm-rhev Will not fix
Red Hat Enterprise Linux 7 qemu-kvm Not affected
Red Hat Enterprise Linux 6 qemu-kvm Not affected
Red Hat Enterprise Linux 5 kvm Not affected
Red Hat Enterprise Linux 5 xen Not affected

Acknowledgements

This issue was discovered by Donghai Zhu of Alibaba.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact Red Hat Product Security.

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