| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network. |
| In the Linux kernel, the following vulnerability has been resolved:
HID: multitouch: fix out-of-bounds bit access on mt_io_flags
mt_io_flags is a single unsigned long, but mt_process_slot(),
mt_release_pending_palms() and mt_release_contacts() use it as a
per-slot bitmap indexed by the slot number. That slot number is only
bounded by td->maxcontacts, which is taken from the device's
ContactCountMaximum feature report and can be up to 255, not by
BITS_PER_LONG.
As a result, a multitouch device that advertises a large contact count
makes set_bit()/clear_bit() operate past the mt_io_flags word and
corrupt the adjacent members of struct mt_device. The sticky-fingers
release timer is the easiest way to reach this. mt_release_contacts()
runs
for (i = 0; i < mt->num_slots; i++)
clear_bit(i, &td->mt_io_flags);
with num_slots == maxcontacts. For maxcontacts around 250 the loop
clears the bits that overlap td->applications.next, zeroing that list
head, and the list_for_each_entry() that immediately follows then
dereferences NULL. The kernel panics from timer (softirq) context. On a
KASAN build this shows up as a general protection fault in
mt_release_contacts() with a null-ptr-deref at offset 0x58, which is
offsetof(struct mt_application, num_received).
The state is reachable from an untrusted USB or Bluetooth HID
multitouch device; no local privileges are required.
Store the per-slot active state in a separately allocated bitmap sized
for maxcontacts, the same pattern already used for pending_palm_slots,
and keep only MT_IO_FLAGS_RUNNING in mt_io_flags. The two
"mt_io_flags & MT_IO_SLOTS_MASK" arming checks become
bitmap_empty(td->active_slots, td->maxcontacts).
Move MT_IO_FLAGS_RUNNING back to bit 0. It was bumped to bit 32 by the
same commit to leave the low byte for the slot bits; with the slot bits
gone it fits in bit 0 again, which also keeps it within the unsigned
long on 32-bit. |
| Stack-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over an adjacent network. |
| Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network. |
| Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network. |
| Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network. |
| Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally. |
| Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information with a physical attack. |
| Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally. |
| Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| Out-of-bounds read in Windows Key Distribution Center allows an unauthorized attacker to deny service over a network. |
| Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network. |
| Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network. |
| Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny service over an adjacent network. |
| Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network. |
| Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny service over an adjacent network. |
| Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code locally. |
| Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network. |
| Stack-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network. |
