VuXML ID | Description |
3c7ba82a-d3fb-11ea-9aba-0c9d925bbbc0 | xorg-server -- Pixel Data Uninitialized Memory Information Disclosure
The X.org project reports:
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.
Discovery 2020-07-31 Entry 2020-08-01 xorg-server
< 1.20.8_3,1
xephyr
< 1.20.8_3,1
xorg-vfbserver
< 1.20.8_3,1
xorg-nestserver
< 1.20.8_3,1
xwayland
< 1.20.8_3,1
xorg-dmx
< 1.20.8_3,1
https://lists.x.org/archives/xorg-announce/2020-July/003051.html
CVE-2020-14347
|
96d84238-b500-490b-b6aa-2b77090a0410 | xorg-server -- Overlay Window Use-After-Free
The X.Org project reports:
- ZDI-CAN-19866/CVE-2023-1393: X.Org Server Overlay Window Use-After-Free
Local Privilege Escalation Vulnerability
If a client explicitly destroys the compositor overlay window (aka COW),
the Xserver would leave a dangling pointer to that window in the CompScreen
structure, which will trigger a use-after-free later.
Discovery 2023-03-29 Entry 2023-03-29 xorg-server
xephyr
xorg-vfbserver
< 21.1.8,1
xorg-nestserver
< 21.1.8,2
xwayland
ge 23.0.0,1 lt 23.1.1,1
< 22.1.9,1
xwayland-devel
< 21.0.99.1.439
https://lists.x.org/archives/xorg-announce/2023-March/003374.html
CVE-2023-1393
|
7467c611-b490-11ee-b903-001fc69cd6dc | xorg server -- Multiple vulnerabilities
The X.Org project reports:
- CVE-2023-6816: Heap buffer overflow in DeviceFocusEvent
and ProcXIQueryPointer
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's number of buttons,
leading to a heap overflow if a bigger value was used.
- CVE-2024-0229: Reattaching to different master device may lead
to out-of-bounds memory access
If a device has both a button class and a key class and
numButtons is zero, we can get an out-of-bounds write due
to event under-allocation in the DeliverStateNotifyEvent
function.
- CVE-2024-21885: Heap buffer overflow in
XISendDeviceHierarchyEvent
The XISendDeviceHierarchyEvent() function allocates space to
store up to MAXDEVICES (256) xXIHierarchyInfo structures in info.
If a device with a given ID was removed and a new device with
the same ID added both in the same operation,
the single device ID will lead to two info structures being
written to info.
Since this case can occur for every device ID at once,
a total of two times MAXDEVICES info structures might be written
to the allocation, leading to a heap buffer overflow.
- CVE-2024-21886: Heap buffer overflow in DisableDevice
The DisableDevice() function is called whenever an enabled device
is disabled and it moves the device from the inputInfo.devices
linked list to the inputInfo.off_devices linked list.
However, its link/unlink operation has an issue during the recursive
call to DisableDevice() due to the prev pointer pointing to a
removed device.
This issue leads to a length mismatch between the total number of
devices and the number of device in the list, leading to a heap
overflow and, possibly, to local privilege escalation.
Discovery 2024-01-16 Entry 2024-01-16 xorg-server
xephyr
xorg-vfbserver
< 21.1.11,1
xorg-nextserver
< 21.1.11,2
xwayland
< 23.2.4
xwayland-devel
< 21.0.99.1.653
CVE-2023-6816
CVE-2024-0229
CVE-2024-21885
CVE-2024-21886
https://lists.x.org/archives/xorg/2024-January/061525.html
|
ffa15b3b-e6f6-11ea-8cbf-54e1ad3d6335 | xorg-server -- Multiple input validation failures in X server extensions
The X.org project reports:
All theses issuses can lead to local privileges elevation on
systems where the X server is running privileged.
The handler for the XkbSetNames request does not validate the
request length before accessing its contents.
An integer underflow exists in the handler for the
XIChangeHierarchy request.
An integer underflow exist in the handler for the XkbSelectEvents
request.
An integer underflow exist in the handler for the CreateRegister
request of the X record extension.
Discovery 2020-08-25 Entry 2020-08-25 xorg-server
< 1.20.8_4,1
xephyr
< 1.20.8_4,1
xorg-vfbserver
< 1.20.8_4,1
xorg-nestserver
< 1.20.8_4,1
xwayland
< 1.20.8_4,1
xorg-dmx
< 1.20.8_4,1
CVE-2020-14345
CVE-2020-14346
CVE-2020-14361
CVE-2020-14362
https://lists.x.org/archives/xorg-announce/2020-August/003058.html
|
76c8b690-340b-11eb-a2b7-54e1ad3d6335 | xorg-server -- Multiple input validation failures in X server XKB extension
The X.org project reports:
These issues can lead to privileges elevations for authorized
clients on systems where the X server is running privileged.
Insufficient checks on the lengths of the XkbSetMap request can
lead to out of bounds memory accesses in the X server.
Insufficient checks on input of the XkbSetDeviceInfo request can
lead to a buffer overflow on the head in the X server.
Discovery 2020-12-01 Entry 2020-12-01 xorg-server
< 1.20.9_1,1
xephyr
< 1.20.9_1,1
xorg-vfbserver
< 1.20.9_1,1
xorg-nestserver
< 1.20.9_1,1
xwayland
< 1.20.9_2,1
xorg-dmx
< 1.20.9_1,1
https://lists.x.org/archives/xorg-announce/2020-December/003066.html
CVE-2020-14360
CVE-2020-25712
|
57561cfc-f24b-11ee-9730-001fc69cd6dc | xorg server -- Multiple vulnerabilities
The X.Org project reports:
-
CVE-2024-31080: Heap buffer overread/data leakage in
ProcXIGetSelectedEvents
The ProcXIGetSelectedEvents() function uses the byte-swapped
length of the return data for the amount of data to return to
the client, if the client has a different endianness than
the X server.
- CVE-2024-31081: Heap buffer overread/data leakage in
ProcXIPassiveGrabDevice
The ProcXIPassiveGrabDevice() function uses the byte-swapped
length of the return data for the amount of data to return to
the client, if the client has a different endianness than
the X server.
- CVE-2024-31083: User-after-free in ProcRenderAddGlyphs
The ProcRenderAddGlyphs() function calls the AllocateGlyph()
function to store new glyphs sent by the client to the X server.
AllocateGlyph() would return a new glyph with refcount=0 and
a re-used glyph would end up not changing the refcount at all.
The resulting glyph_new array would thus have multiple entries
pointing to the same non-refcounted glyphs.
ProcRenderAddGlyphs() may free a glyph, resulting in a
use-after-free when the same glyph pointer is then later used.
Discovery 2024-04-03 Entry 2024-04-04 xorg-server
xephyr
xorg-vfbserver
< 21.1.12,1
xorg-nextserver
< 21.1.12,2
xwayland
< 23.2.5
xwayland-devel
ge 21.0.99.1.672 lt 21.0.99.1.841_1
< 21.0.99.1.671_1
CVE-2024-31080
CVE-2024-31081
CVE-2024-31083
https://lists.x.org/archives/xorg-announce/2024-April/003497.html
|
465db5b6-9c6d-11eb-8e8a-bc542f4bd1dd | xorg-server -- Input validation failures in X server XInput extension
X.Org server security reports for release 1.20.11:
- Fix XChangeFeedbackControl() request underflow
.
Discovery 2021-04-13 Entry 2021-04-13 xorg-server
< 1.20.11,1
xwayland
< 1.20.11,1
xwayland-devel
le 1.20.0.877
https://gitlab.freedesktop.org/xorg/xserver/-/tags/xorg-server-1.20.11
|
972568d6-3485-40ab-80ff-994a8aaf9683 | xorg-server -- Multiple vulnerabilities
The X.Org project reports:
- CVE-2023-6377/ZDI-CAN-22412/ZDI-CAN-22413: X.Org
server: Out-of-bounds memory write in XKB button actions
A device has XKB button actions for each button on the
device. When a logical device switch happens (e.g. moving
from a touchpad to a mouse), the server re-calculates the
information available on the respective master device
(typically the Virtual Core Pointer). This re-calculation
only allocated enough memory for a single XKB action
rather instead of enough for the newly active physical
device's number of button. As a result, querying or
changing the XKB button actions results in out-of-bounds
memory reads and writes.
This may lead to local privilege escalation if the server is run as root or
remote code execution (e.g. x11 over ssh).
- CVE-2023-6478/ZDI-CAN-22561: X.Org server:
Out-of-bounds memory read in RRChangeOutputProperty and
RRChangeProviderProperty
This fixes an OOB read and the resulting information disclosure.
Length calculation for the request was clipped to a 32-bit integer. With
the correct stuff->nUnits value the expected request size was
truncated, passing the REQUEST_FIXED_SIZE check.
The server then proceeded with reading at least stuff->nUnits bytes
(depending on stuff->format) from the request and stuffing whatever it
finds into the property. In the process it would also allocate at least
stuff->nUnits bytes, i.e. 4GB.
Discovery 2023-12-13 Entry 2023-12-13 xorg-server
xephyr
xorg-vfbserver
< 21.1.10,1
xorg-nestserver
< 21.1.10,2
xwayland
< 23.2.3,1
xwayland-devel
< 21.0.99.1.582
https://lists.x.org/archives/xorg-announce/2023-December/003435.html
CVE-2023-6377
CVE-2023-6478
|
9e2fdfc7-e237-4393-9fa5-2d50908c66b3 | xorg-server -- Multiple vulnerabilities
The X.Org project reports:
- ZDI-CAN-22153/CVE-2023-5367: X.Org server: OOB write
in XIChangeDeviceProperty/RRChangeOutputProperty
When prepending values to an existing property an
invalid offset calculation causes the existing values to
be appended at the wrong offset. The resulting memcpy()
would write into memory outside the heap-allocated
array.
- ZDI-CAN-21608/CVE-2023-5380: Use-after-free bug in
DestroyWindow
This vulnerability requires a legacy multi-screen setup
with multiple protocol screens ("Zaphod"). If the pointer
is warped from one screen to the root window of the other
screen, the enter/leave code may retain a reference to the
previous pointer window. Destroying this window leaves
that reference in place, other windows may then trigger a
use-after-free bug when they are destroyed.
Discovery 2023-10-25 Entry 2023-10-25 xorg-server
xephyr
xorg-vfbserver
< 21.1.9,1
xorg-nestserver
< 21.1.9,2
xwayland
< 23.2.2,1
xwayland-devel
< 21.0.99.1.542
https://lists.x.org/archives/xorg-announce/2023-October/003430.html
CVE-2023-5367
CVE-2023-5380
|
9fa7b139-c1e9-409e-bed0-006aadcf5845 | xorg-server -- Multiple security issues in X server extensions
The X.org project reports:
- CVE-2022-46340/ZDI-CAN-19265: X.Org Server XTestSwapFakeInput stack
overflow
The swap handler for the XTestFakeInput request of the XTest extension
may corrupt the stack if GenericEvents with lengths larger than 32 bytes
are sent through a the XTestFakeInput request.
This issue does not affect systems where client and server use the same
byte order.
- CVE-2022-46341/ZDI-CAN-19381: X.Org Server XIPassiveUngrab
out-of-bounds access
The handler for the XIPassiveUngrab request accesses out-of-bounds
memory when invoked with a high keycode or button code.
- CVE-2022-46342/ZDI-CAN-19400: X.Org Server XvdiSelectVideoNotify
use-after-free
The handler for the XvdiSelectVideoNotify request may write to memory
after it has been freed.
- CVE-2022-46343/ZDI-CAN-19404: X.Org Server ScreenSaverSetAttributes
use-after-free
The handler for the ScreenSaverSetAttributes request may write to memory
after it has been freed.
- CVE-2022-46344/ZDI-CAN-19405: X.Org Server XIChangeProperty
out-of-bounds access
The handler for the XIChangeProperty request has a length-validation
issues, resulting in out-of-bounds memory reads and potential
information disclosure.
- CVE-2022-4283/ZDI-CAN-19530: X.Org Server XkbGetKbdByName use-after-free
The XkbCopyNames function left a dangling pointer to freed memory,
resulting in out-of-bounds memory access on subsequent XkbGetKbdByName
requests.
Discovery 2022-12-14 Entry 2023-01-11 xorg-server
xephyr
xorg-vfbserver
< 21.1.5,1
xorg-nestserver
< 21.1.5,2
xwayland
< 22.1.6,1
xwayland-devel
< 21.0.99.1.319
https://lists.x.org/archives/xorg-announce/2022-December/003302.html
CVE-2022-46340
CVE-2022-46341
CVE-2022-46342
CVE-2022-46343
CVE-2022-46344
CVE-2022-4283
|
6cc63bf5-a727-4155-8ec4-68b626475e68 | xorg-server -- Security issue in the X server
The X.org project reports:
Discovery 2023-02-07 Entry 2023-02-08 xorg-server
xephyr
xorg-vfbserver
< 21.1.7,1
xorg-nestserver
< 21.1.7,2
xwayland
< 22.1.8,1
xwayland-devel
< 21.0.99.1.386
https://lists.x.org/archives/xorg-announce/2023-February/003320.html
CVE-2023-0494
|