Resource exhaustion in Xen - CVE-2016-5403
Published: August 2, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32259
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-5403
CWE-ID: CWE-400
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.
How to mitigate CVE-2016-5403
Install update from vendor's website.
Sources
- http://rhn.redhat.com/errata/RHSA-2016-1585.html
- http://rhn.redhat.com/errata/RHSA-2016-1586.html
- http://rhn.redhat.com/errata/RHSA-2016-1606.html
- http://rhn.redhat.com/errata/RHSA-2016-1607.html
- http://rhn.redhat.com/errata/RHSA-2016-1652.html
- http://rhn.redhat.com/errata/RHSA-2016-1653.html
- http://rhn.redhat.com/errata/RHSA-2016-1654.html
- http://rhn.redhat.com/errata/RHSA-2016-1655.html
- http://rhn.redhat.com/errata/RHSA-2016-1756.html
- http://rhn.redhat.com/errata/RHSA-2016-1763.html
- http://rhn.redhat.com/errata/RHSA-2016-1943.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/92148
- http://www.securitytracker.com/id/1036476
- http://www.ubuntu.com/usn/USN-3047-1
- http://www.ubuntu.com/usn/USN-3047-2
- http://xenbits.xen.org/xsa/advisory-184.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1358359
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html