CVE-2015-1779

Severity

78%

Complexity

99%

Confidentiality

115%

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.

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.

CVSS 3.0 Base Score 8.6. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).

CVSS 2.0 Base Score 7.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C).

Overview

First reported 9 years ago

2016-01-12 19:59:00

Last updated 7 years ago

2017-07-01 01:29:00

Affected Software

QEMU

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 14.10

14.10

Canonical Ubuntu Linux 15.04

15.04

Debian Linux 7.0

7.0

Debian Linux 8.0 (Jessie)

8.0

Fedora 21

21

Fedora 22

22

Novell SUSE Linux Enterprise Desktop 11.0 Service Pack 3

11.0

Novell SUSE Linux Enterprise Desktop 12.0

12.0

Novell SUSE Linux Enterprise Server 11.0 Service Pack 3

11.0

Novell SUSE Linux Enterprise Server 12.0

12.0

Red Hat Enterprise Linux (RHEL) 7.0 (7)

7.0

References

FEDORA-2015-5482

FEDORA-2015-5541

SUSE-SU-2015:0870

SUSE-SU-2015:0896

RHSA-2015:1931

RHSA-2015:1943

DSA-3259

[oss-security] 20150324 CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder

[oss-security] 20150409 Re: CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

73303

1033975

USN-2608-1

[Qemu-devel] 20150323 [PATCH 0/2] CVE-2015-1779: fix denial of service in VNC websockets

[Qemu-devel] 20150323 [PATCH 2/2] CVE-2015-1779: limit size of HTTP headers from websockets clients

[Qemu-devel] 20150323 [PATCH 1/2] CVE-2015-1779: incrementally decode websocket frames

GLSA-201602-01

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