CVE-2015-1779

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2015-1779
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.

8.6 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

7.8 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.html Broken Link
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html Broken Link
http://rhn.redhat.com/errata/RHSA-2015-1931.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1943.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3259 Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/03/24/9 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/09/6 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html Third Party Advisory
http://www.securityfocus.com/bid/73303 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1033975 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2608-1 Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.html Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.html Mailing List Patch Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.html Mailing List Patch Third Party Advisory
https://security.gentoo.org/glsa/201602-01 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.3.0:rc0:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.3.0:rc1:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*

Configuration 5 (hide)

OR cpe:2.3:o:redhat:enterprise_linux_eus:7.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Configuration 7 (hide)

cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*
History

13 Feb 2023, 00:46

Type Values Removed Values Added
References
  • {'url': 'https://access.redhat.com/errata/RHSA-2015:1943', 'name': 'https://access.redhat.com/errata/RHSA-2015:1943', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1199572', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1199572', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2015:1931', 'name': 'https://access.redhat.com/errata/RHSA-2015:1931', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/security/cve/CVE-2015-1779', 'name': 'https://access.redhat.com/security/cve/CVE-2015-1779', 'tags': [], 'refsource': 'MISC'}
Summary It was found that the QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and the payload. An attacker able to access a guest's VNC console could use this flaw to trigger a denial of service on the host by exhausting all available memory and CPU. 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.

02 Feb 2023, 15:16

Type Values Removed Values Added
References
  • (MISC) https://access.redhat.com/errata/RHSA-2015:1943 -
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1199572 -
  • (MISC) https://access.redhat.com/errata/RHSA-2015:1931 -
  • (MISC) https://access.redhat.com/security/cve/CVE-2015-1779 -
Summary 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. It was found that the QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and the payload. An attacker able to access a guest's VNC console could use this flaw to trigger a denial of service on the host by exhausting all available memory and CPU.
Information

Published : 2016-01-12 19:59

Updated : 2023-12-10 11:46

NVD link : CVE-2015-1779

Mitre link : CVE-2015-1779

CVE.ORG link : CVE-2015-1779

JSON object : View

Products Affected

redhat

  • enterprise_linux_server_aus
  • enterprise_linux_workstation
  • virtualization
  • enterprise_linux_eus
  • enterprise_linux_server
  • enterprise_linux_server_tus
  • enterprise_linux

oracle

  • linux

canonical

  • ubuntu_linux

qemu

  • qemu

fedoraproject

  • fedora

debian

  • debian_linux
CWE
CWE-400

Uncontrolled Resource Consumption