151 results · Feed
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High 7.8
Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()
An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the la…
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High 7.8
Xorg: xwayland: buffer overflow in xkbchangetypesofkey()
A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, thi…
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High 7.8
Xorg: xwayland: heap overflow in xkbwritekeysyms()
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
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High 7.8
Xorg: xwayland: buffer overflow in xkbvmodmasktext()
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the…
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High 7.8
X.org: xwayland: use-after-free of the root cursor
A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.
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High 7.8
Xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability
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 escalatio…
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High 7.8
Xorg-x11-server: use-after-free in procrenderaddglyphs
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the …
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High 7.3
Xorg-x11-server: heap buffer overread/data leakage in procappledricreatepixmap
A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly…
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High 7.3
Xorg-x11-server: heap buffer overread/data leakage in procxipassivegrabdevice
A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly …
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High 7.3
Xorg-x11-server: heap buffer overread/data leakage in procxigetselectedevents
A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly …
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High 7.8
Xorg-x11-server: heap buffer overflow in disabledevice
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.
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High 7.8
Xorg-x11-server: heap buffer overflow in xisenddevicehierarchyevent
A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which ma…
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High 7.8
Xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the serv…
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High 7.8
Xorg-x11-server: selinux context corruption
A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.
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Medium 5.5
Xorg-x11-server: selinux unlabeled glx pbuffer
A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource t…
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Critical 9.8
Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device'…
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High 7.6
Xorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderproperty
A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information.
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High 7.8
Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions
A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where …
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High 7.0
Xorg-x11-server: use-after-free bug in damagedestroy
A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a sc…
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Medium 4.7
Xorg-x11-server: use-after-free bug in destroywindow
A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on o…
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High 7.8
Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty
A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty func…
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High 7.8
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client e…
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High 7.8
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be e…
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High 7.8
A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer…
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High 8.8
A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes requ…
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Unscored —
A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has …
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High 8.8
A vulnerability was found in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request…
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High 8.8
A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request o…
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High 8.8
A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab request acces…
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Medium 5.5
X.org Server xkb.c _GetCountedString buffer overflow
A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the function _GetCountedString of the file xkb/xkb.c. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. The asso…
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Low 3.5
X.org Server xquartz X11Controller.m denial of service
A vulnerability, which was classified as problematic, was found in X.org Server. This affects an unknown part of the file hw/xquartz/X11Controller.m of the component xquartz. The manipulation leads to denial of service. It is recommended to apply a patch to f…
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Low 3.5
X.org Server xkb.c ProcXkbGetKbdByName memory leak
A vulnerability, which was classified as problematic, has been found in X.org Server. Affected by this issue is the function ProcXkbGetKbdByName of the file xkb/xkb.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue…
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Unscored —
A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests.…
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Unscored —
A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due…
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Unscored —
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in …
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Unscored —
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in …
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Unscored —
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in …
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Unscored —
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in …
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Unscored —
A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lea…
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Unscored —
A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap function may lead…