CVE-2015-1779 : The VNC websocket frame decoder in QEMU allows remote attackers to cause a denia

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.

Published 2016-01-12 19:59:00

Updated 2023-02-13 00:46:39

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2015-1779

Debian » Debian Linux » Version: 7.0
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 7.3
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 7.4
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 7.5
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Eus » Version: 7.7
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Eus » Version: 7.1
cpe:2.3:o:redhat:enterprise_linux_eus:7.1:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Eus » Version: 7.2
cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Server » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Workstation » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
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Redhat » Enterprise Linux Server Aus » Version: 7.3
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 7.4
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 7.7
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 7.3
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 7.7
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
Matching versions
Redhat » Virtualization » Version: 3.0
cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*
Matching versions
When used together with: Redhat » Enterprise Linux » Version: 7.0
Oracle » Linux » Version: 7
cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 ESM Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 15.04
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 12.04 ESM Edition
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
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Canonical » Ubuntu Linux » Version: 14.10
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 21
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
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Fedoraproject » Fedora » Version: 22
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
Matching versions
Qemu » Qemu
Versions up to, including, (<=) 2.2.1
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Matching versions
Qemu » Qemu » Version: 2.3.0 Update RC0
cpe:2.3:a:qemu:qemu:2.3.0:rc0:*:*:*:*:*:*
Matching versions
Qemu » Qemu » Version: 2.3.0 Update RC1
cpe:2.3:a:qemu:qemu:2.3.0:rc1:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2015-1779

EPSS FAQ

1.10%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 83 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-1779

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	3.9	4.0	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2015-1779

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2015-1779

http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html

Object not found!
Broken Link

CVEs referencing this url
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html

[SECURITY] Fedora 21 Update: qemu-2.1.3-5.fc21
Third Party Advisory

CVEs referencing this url
http://www.ubuntu.com/usn/USN-2608-1

USN-2608-1: QEMU vulnerabilities | Ubuntu security notices
Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2015-1931.html

RHSA-2015:1931 - Security Advisory - Red Hat Customer Portal
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1943.html

RHSA-2015:1943 - Security Advisory - Red Hat Customer Portal
Third Party Advisory
https://security.gentoo.org/glsa/201602-01

QEMU: Multiple vulnerabilities (GLSA 201602-01) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.html

[Qemu-devel] [PATCH 0/2] CVE-2015-1779: fix denial of service in VNC web
Mailing List;Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Oracle Linux Bulletin - October 2015
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.html

Object not found!
Broken Link
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.html

[Qemu-devel] [PATCH 2/2] CVE-2015-1779: limit size of HTTP headers from
Mailing List;Patch;Third Party Advisory
http://www.securitytracker.com/id/1033975

QEMU VNC Websockets Decoder Lets Remote Users on the Local Network Consume Excessive Memory and CPU Resources - SecurityTracker
Third Party Advisory;VDB Entry
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.html

[SECURITY] Fedora 22 Update: qemu-2.3.0-0.3.rc2.fc22
Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.html

[Qemu-devel] [PATCH 1/2] CVE-2015-1779: incrementally decode websocket f
Mailing List;Patch;Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/09/6

oss-security - Re: CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder
Mailing List;Third Party Advisory
http://www.securityfocus.com/bid/73303

QEMU CVE-2015-1779 Denial of Service Vulnerability
Third Party Advisory;VDB Entry
http://www.openwall.com/lists/oss-security/2015/03/24/9

oss-security - CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder
Mailing List;Third Party Advisory
http://www.debian.org/security/2015/dsa-3259

Debian -- Security Information -- DSA-3259-1 qemu
Third Party Advisory

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2015-1779

Products affected by CVE-2015-1779

Exploit prediction scoring system (EPSS) score for CVE-2015-1779

CVSS scores for CVE-2015-1779

CWE ids for CVE-2015-1779

References for CVE-2015-1779