high
8.6
CWE
400
Advisory Published
Updated

CVE-2015-1779

First published: Tue Jan 12 2016(Updated: )

The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
QEMU<=2.2.1
QEMU=2.3.0-rc0
QEMU=2.3.0-rc1
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=14.10
Ubuntu=15.04
Debian=7.0
Debian=8.0
Fedora=21
Fedora=22
Red Hat Enterprise Linux Server EUS=7.1
Red Hat Enterprise Linux Server EUS=7.2
Red Hat Enterprise Linux Server EUS=7.3
Red Hat Enterprise Linux Server EUS=7.4
Red Hat Enterprise Linux Server EUS=7.5
Red Hat Enterprise Linux Server EUS=7.6
Red Hat Enterprise Linux Server EUS=7.7
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Workstation=7.0
Red Hat Enterprise Virtualization=3.0
Red Hat Enterprise Linux=7.0
Oracle Linux=7

Remedy

https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.html

Remedy

https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-1779?

    CVE-2015-1779 has a severity rating that indicates it can cause a denial of service due to excessive resource consumption.

  • How do I fix CVE-2015-1779?

    To fix CVE-2015-1779, update QEMU to the latest available version that addresses this vulnerability.

  • Which versions of QEMU are affected by CVE-2015-1779?

    CVE-2015-1779 affects QEMU versions up to and including 2.2.1, as well as 2.3.0-rc0 and 2.3.0-rc1.

  • What systems are vulnerable to CVE-2015-1779?

    Systems vulnerable to CVE-2015-1779 include various versions of Ubuntu, Debian, Fedora, and Red Hat Enterprise Linux.

  • Can CVE-2015-1779 be exploited remotely?

    Yes, CVE-2015-1779 can be exploited remotely through large WebSocket payloads or HTTP headers.

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