xorg-x11-server-1.20.4-99.0.8.el7.AXS7

X.Org X11 X server

Security Fix(es):

* CVE-2025-9632: fix buffer overflow in _XkbSetCompatMap()
* CVE-2025-62229: fix use-after-free condition due improper error handling
during notification creation leading to DoS
* CVE-2025-62230: fix use-after-free condition due freeing certain data
structures without properly detaching related resources
* CVE-2025-62231: fix unsigned short overflow in XkbSetCompatMap() function

CVE(s):
CVE-2025-62230
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
CVE-2025-62231
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
CVE-2024-9632
A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.
CVE-2025-62229
A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.