CVE-2014-7815
published 2014-11-14CVE-2014-7815: The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
PriorityP422medium5CVSS 2.0
AVNACLAuNCNINAP
EPSS
3.74%
88.7th percentile
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
Affected
27 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 | qemu | < qemu 2.1+dfsg-7 (bookworm) | qemu 2.1+dfsg-7 (bookworm) |
| qemu | qemu | <= 2.1.3 | — |
| qemu | qemu | >= 0 < 2.1+dfsg-7 | 2.1+dfsg-7 |
| qemu | qemu | >= 0 < 2.1+dfsg-7 | 2.1+dfsg-7 |
| qemu | qemu | >= 0 < 2.1+dfsg-7 | 2.1+dfsg-7 |
| qemu | qemu | >= 0 < 2.1+dfsg-7 | 2.1+dfsg-7 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.7 | 2.0.0+dfsg-2ubuntu1.7 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_workstation | — | — |
| redhat | virtualization | — | — |
CVSS provenance
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.0MEDIUM
vendor_debian5.0MEDIUM
vendor_redhat5.0MEDIUM
vendor_ubuntu2.1LOW
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2014-11-13·CVSS 2.1
CVE-2014-3615 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Laszlo Ersek discovered that QEMU incorrectly handled memory in the vga
device. A malicious guest could possibly use this issue to read arbitrary
host memory. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
(CVE-2014-3615)
Xavier Mehrenberger and Stephane Duverger discovered that QEMU incorrectly
handled certain udp packets when using guest networking. A malicious guest
could possibly use this issue to cause a denial of service. (CVE-2014-3640)
It was discovered that QEMU incorrectly handled parameter validation in
the vmware_vga device. A malicious guest could possibly use this issue to
write into memory of the host, leading to privilege escalation.
(CVE-2014-3689)
It was discovered that QEMU
Red Hat
qemu: vnc: insufficient bits_per_pixel from the client sanitization
vendor_redhat·2014-10-27·CVSS 5.0
CVE-2014-7815 [MEDIUM] qemu: vnc: insufficient bits_per_pixel from the client sanitization
qemu: vnc: insufficient bits_per_pixel from the client sanitization
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
An uninitialized data structure use flaw was found in the way the set_pixel_format() function sanitized the value of bits_per_pixel. An attacker able to access a guest's VNC console could use this flaw to crash the guest.
Statement: This issue did not affect the kvm package as shipped with Red Hat Enterprise
Linux 5. Future qemu-kvm updates for Red Hat Enterprise Linux 6 and 7 may address this issue.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Affected
Debian
CVE-2014-7815: qemu - The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cau...
vendor_debian·2014·CVSS 5.0
CVE-2014-7815 [MEDIUM] CVE-2014-7815: qemu - The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cau...
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
Scope: local
bookworm: resolved (fixed in 2.1+dfsg-7)
bullseye: resolved (fixed in 2.1+dfsg-7)
forky: resolved (fixed in 2.1+dfsg-7)
sid: resolved (fixed in 2.1+dfsg-7)
trixie: resolved (fixed in 2.1+dfsg-7)
GHSA
GHSA-5gvx-32vr-xx6v: The set_pixel_format function in ui/vnc
ghsa_unreviewed·2022-05-13
CVE-2014-7815 [MEDIUM] CWE-20 GHSA-5gvx-32vr-xx6v: The set_pixel_format function in ui/vnc
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
OSV
CVE-2014-7815: The set_pixel_format function in ui/vnc
osv·2014-11-14·CVSS 5.0
CVE-2014-7815 [MEDIUM] CVE-2014-7815: The set_pixel_format function in ui/vnc
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
OSV
qemu, qemu-kvm vulnerabilities
osv·2014-11-13·CVSS 2.1
CVE-2014-3615 [LOW] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Laszlo Ersek discovered that QEMU incorrectly handled memory in the vga
device. A malicious guest could possibly use this issue to read arbitrary
host memory. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
(CVE-2014-3615)
Xavier Mehrenberger and Stephane Duverger discovered that QEMU incorrectly
handled certain udp packets when using guest networking. A malicious guest
could possibly use this issue to cause a denial of service. (CVE-2014-3640)
It was discovered that QEMU incorrectly handled parameter validation in
the vmware_vga device. A malicious guest could possibly use this issue to
write into memory of the host, leading to privilege escalation.
(CVE-2014-3689)
It was discovered that QEMU incorrectly handled USB xHCI controller live
migra
No detection rules found.
No public exploits indexed.
Talos
The Mutiny Fuzzing Framework and Decept Proxy
blogs_talos·2017-12-07
The Mutiny Fuzzing Framework and Decept Proxy
## The Mutiny Fuzzing Framework and Decept Proxy
This blog post is authored by James Spadaro of Cisco ASIG and Lilith Wyatt of Cisco Talos.
Imagine a scenario where you, as a vulnerability researcher, are tasked with auditing a network application to identify vulnerabilities. By itself, the task may not seem too daunting until you learn of a couple conditions and constraints: you have very little information to work off of on how the network applications operates, how the protocols work, and you have a limited amount of time to conduct your evaluation. What do you do?
In these scenarios, searching for and identifying vulnerabilities in network applications can be a monumental task. Fuzzing is one testing method that researchers may use in these cases to test software and find vulnerabil
Talos
The Mutiny Fuzzing Framework and Decept Proxy
blogs_talos·2017-12-07
The Mutiny Fuzzing Framework and Decept Proxy
This blog post is authored by James Spadaro of Cisco ASIG and Lilith Wyatt of Cisco Talos.
Imagine a scenario where you, as a vulnerability researcher, are tasked with auditing a network application to identify vulnerabilities. By itself, the task may not seem too daunting until you learn of a couple conditions and constraints: you have very little information to work off of on how the network applications operates, how the protocols work, and you have a limited amount of time to conduct your evaluation. What do you do?
In these scenarios, searching for and identifying vulnerabilities in network applications can be a monumental task. Fuzzing is one testing method that researchers may use in these cases to test software and find vulnerabilities in an efficient manner. However, the questio
Bugzilla
CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization
bugzilla·2014-10-27·CVSS 5.0
CVE-2014-7815 [MEDIUM] CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization
CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization
bits_per_pixel that are less than 8 could result in accessing
non-initialized buffers later in the code due to the expectation
that bytes_per_pixel value that is used to initialize these buffers is
never zero.
An attacker having access to the guest's VNC console could use this
flaw to crash the guest.
Acknowledgements:
Red Hat would like to thank James Spadaro of Cisco for reporting this issue.
Discussion:
Upstream patch submission:
http://lists.gnu.org/archive/html/qemu-devel/2014-10/msg03210.html
---
Statement:
This issue did not affect the kvm package as shipped with Red Hat Enterprise
Linux 5. Future qemu-kvm updates for Red Hat Enterprise Linux 6 and 7 may address this issue.
---
Created qemu
Bugzilla
CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization [fedora-all]
bugzilla·2014-10-27·CVSS 5.0
CVE-2014-7815 [MEDIUM] CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization [fedora-all]
CVE-2014-7815 qemu: vnc: insufficient bits_per_pixel from the client sanitization [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
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e6908bfe8e07f2b452e78e677da1b45b1c0f6829http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0349.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0624.htmlhttp://secunia.com/advisories/61484http://secunia.com/advisories/62143http://secunia.com/advisories/62144http://support.citrix.com/article/CTX200892http://www.debian.org/security/2014/dsa-3066http://www.debian.org/security/2014/dsa-3067http://www.ubuntu.com/usn/USN-2409-1https://bugzilla.redhat.com/show_bug.cgi?id=1157641http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e6908bfe8e07f2b452e78e677da1b45b1c0f6829http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0349.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0624.htmlhttp://secunia.com/advisories/61484http://secunia.com/advisories/62143http://secunia.com/advisories/62144http://support.citrix.com/article/CTX200892http://www.debian.org/security/2014/dsa-3066http://www.debian.org/security/2014/dsa-3067http://www.ubuntu.com/usn/USN-2409-1https://bugzilla.redhat.com/show_bug.cgi?id=1157641
2014-11-14
Published