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CVE-2012-0064

xkeyboard-config: screen-saver unlock via xkb debug key actions

xkeyboard-config before 2.5 in X.Org before 7.6 enables certain XKB debugging functions by default, which allows physically proximate attackers to bypass an X screen lock via keyboard combinations that break the input grab.

CVSS 2.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
X Xkeyboard Config Project
Products
X.org X11 Xkeyboard-config
CVE-2012-1699

xorg-x11: DoS and information leak in xfs prior to X11R6.7

The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 before 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEventMask request that triggers an invalid pointer dereference.

CVSS 2.0 · 3.6 Low EPSS < 1% KEV · Not listed
Vendors
X Xfree86
Products
X.org X11 Xfree86
CVE-2013-4396

xorg-x11-server: use-after-free flaw when handling ImageText requests

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

CVSS 2.0 · 6.5 Medium EPSS 4.1% KEV · Not listed
Vendors
Redhat X
Products
Enterprise Linux X.org X11