CVE-2015-1779
published 2016-01-12CVE-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…
PriorityP341high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
6.57%
93.8th percentile
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.
Affected
34 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.3+dfsg-1 (bookworm) | qemu 1:2.3+dfsg-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| oracle | linux | — | — |
| qemu | qemu | <= 2.2.1 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:2.3+dfsg-1 | 1:2.3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.3+dfsg-1 | 1:2.3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.3+dfsg-1 | 1:2.3+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.3+dfsg-1 | 1:2.3+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.11 | 2.0.0+dfsg-2ubuntu1.11 |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_server | — | — |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
osv8.6HIGH
vendor_debian8.6HIGH
vendor_redhat8.6HIGH
vendor_ubuntu8.6HIGH
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2015-05-13·CVSS 8.6
CVE-2015-1779 [HIGH] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Jason Geffner discovered that QEMU incorrectly handled the virtual floppy
driver. This issue is known as VENOM. A malicious guest could use this
issue to cause a denial of service, or possibly execute arbitrary code on
the host as the user running the QEMU process. In the default installation,
when QEMU is used with libvirt, attackers would be isolated by the libvirt
AppArmor profile. (CVE-2015-3456)
Daniel P. Berrange discovered that QEMU incorrectly handled VNC websockets.
A remote attacker could use this issue to cause QEMU to consume memory,
resulting in a denial of service. This issue only affected Ubuntu 14.04
LTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-1779)
Jan Beulich discovered that QEMU, when
Red Hat
qemu: vnc: insufficient resource limiting in VNC websockets decoder
vendor_redhat·2015-03-23·CVSS 8.6
CVE-2015-1779 [HIGH] CWE-770 qemu: vnc: insufficient resource limiting in VNC websockets decoder
qemu: vnc: insufficient resource limiting in VNC websockets decoder
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.
Statement: This issue did not affect the kvm and qemu-kvm packages as shipped with Red Hat Enterprise Linux 5 and 6.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Debian
CVE-2015-1779: qemu - The VNC websocket frame decoder in QEMU allows remote attackers to cause a denia...
vendor_debian·2015·CVSS 8.6
CVE-2015-1779 [HIGH] CVE-2015-1779: qemu - 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.
Scope: local
bookworm: resolved (fixed in 1:2.3+dfsg-1)
bullseye: resolved (fixed in 1:2.3+dfsg-1)
forky: resolved (fixed in 1:2.3+dfsg-1)
sid: resolved (fixed in 1:2.3+dfsg-1)
trixie: resolved (fixed in 1:2.3+dfsg-1)
GHSA
GHSA-cmjj-4jjr-c8vv: 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 pa
ghsa_unreviewed·2022-05-13
CVE-2015-1779 [HIGH] CWE-400 GHSA-cmjj-4jjr-c8vv: 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 pa
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.
OSV
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 pa
osv·2016-01-12·CVSS 8.6
CVE-2015-1779 [HIGH] 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 pa
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.
OSV
qemu, qemu-kvm vulnerabilities
osv·2015-05-13·CVSS 8.6
CVE-2015-3456 [HIGH] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Jason Geffner discovered that QEMU incorrectly handled the virtual floppy
driver. This issue is known as VENOM. A malicious guest could use this
issue to cause a denial of service, or possibly execute arbitrary code on
the host as the user running the QEMU process. In the default installation,
when QEMU is used with libvirt, attackers would be isolated by the libvirt
AppArmor profile. (CVE-2015-3456)
Daniel P. Berrange discovered that QEMU incorrectly handled VNC websockets.
A remote attacker could use this issue to cause QEMU to consume memory,
resulting in a denial of service. This issue only affected Ubuntu 14.04
LTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-1779)
Jan Beulich discovered that QEMU, when used with Xen, didn't properly
restrict access to P
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder [fedora-all]
bugzilla·2015-03-24·CVSS 8.6
CVE-2015-1779 [HIGH] CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder [fedora-all]
CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple suppo
Bugzilla
CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder
bugzilla·2015-03-06·CVSS 8.6
CVE-2015-1779 [HIGH] CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder
CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder
It was found that the QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and 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.
Acknowledgements:
This issue was discovered by Daniel P. Berrange of Red Hat.
Discussion:
Created attachment 998931
0001-CVE-2015-1779-incrementally-decode-websocket-frames.patch
---
Created attachment 998932
0002-CVE-2015-1779-limit-size-of-HTTP-headers-from-websoc.patch
---
Created attachment 999785
0001-CVE-2015-1779-incrementally-decode-websocket-frames.patch
---
Created attachment 999786
0002-CVE-
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1931.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1943.htmlhttp://www.debian.org/security/2015/dsa-3259http://www.openwall.com/lists/oss-security/2015/03/24/9http://www.openwall.com/lists/oss-security/2015/04/09/6http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlhttp://www.securityfocus.com/bid/73303http://www.securitytracker.com/id/1033975http://www.ubuntu.com/usn/USN-2608-1https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlhttps://security.gentoo.org/glsa/201602-01http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1931.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1943.htmlhttp://www.debian.org/security/2015/dsa-3259http://www.openwall.com/lists/oss-security/2015/03/24/9http://www.openwall.com/lists/oss-security/2015/04/09/6http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlhttp://www.securityfocus.com/bid/73303http://www.securitytracker.com/id/1033975http://www.ubuntu.com/usn/USN-2608-1https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlhttps://security.gentoo.org/glsa/201602-01
2016-01-12
Published