description: A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
problem types: CWE-191
affected:
{
vendor: n/a
product: xorg-x11-server
versions:
version: before xorg-x11-server 1.20.9, status: affected
}