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Short Name |
APP:QEMU-VNC-SETPIXEL-PTR-DEREF |
|---|---|
Severity |
Major |
Recommended |
No |
Recommended Action |
Drop |
Category |
APP |
Keywords |
QEMU vnc set_pixel_format bits_per_pixel Null Pointer Dereference |
Release Date |
2014/11/26 |
Update Number |
2445 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
APP: QEMU vnc set_pixel_format bits_per_pixel Null Pointer Dereference
A null pointer dereference vulnerability has been found in QEMU. The vulnerability is due to insufficient checking of an initialized buffer. A remote attacker could exploit this vulnerability by setting bits_per_pixel to a value that is less than 8. Successful exploitation could lead to a denial of service condition on the guest VM.
Extended Description
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 Products
- Canonical ubuntu_linux 10.04
- Canonical ubuntu_linux 12.04
- Canonical ubuntu_linux 14.04
- Canonical ubuntu_linux 14.10
- Debian debian_linux 7.0
- Qemu qemu 2.1.3
- Redhat enterprise_linux_desktop 7.0
- Redhat enterprise_linux_eus 7.3
- Redhat enterprise_linux_eus 7.4
- Redhat enterprise_linux_eus 7.5
- Redhat enterprise_linux_eus 7.6
- Redhat enterprise_linux_eus 7.7
- Redhat enterprise_linux_server 7.0
- Redhat enterprise_linux_server_aus 7.3
- Redhat enterprise_linux_server_aus 7.4
- Redhat enterprise_linux_server_aus 7.6
- Redhat enterprise_linux_server_aus 7.7
- Redhat enterprise_linux_workstation 7.0
- Redhat virtualization 3.0
- Suse linux_enterprise_desktop 12
- Suse linux_enterprise_server 12
References
- BugTraq: 70998
- CVE: CVE-2014-7815