Allocation for pixmap data in AllocatePixmap() does not initialize the memory in xserver, it leads to leak uninitialize heap memory to clients. When the X server runs with elevated privileges. This flaw can lead to ASLR bypass, which when combined with other flaws (known/unknown) could lead to lead to privilege elevation in the client.
Allocation for pixmap data in AllocatePixmap() does not initialize the memory in xserver, it leads to leak uninitialize heap memory to clients. When the X server runs with elevated privileges. This flaw can lead to ASLR bypass, which when combined with other flaws (known/unknown) could lead to lead to privilege elevation in the client.
https://lists.x.org/archives/xorg-announce/2020-July/003051.html
Vulmon