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+ |
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.
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.