| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| The userspace verifier z_vrfy_log_filter_set() for the log_filter_set syscall in subsys/logging/log_mgmt.c performed a signed comparison against the int16_t src_id parameter: src_id < (int16_t)log_src_cnt_get(domain_id). Any negative value for src_id (e.g. -1) trivially satisfied this check and was forwarded into z_impl_log_filter_set, where it propagated to filter_set() and ultimately to get_dynamic_filter(), which uses source_id as an unsigned index into the linker-section array &TYPE_SECTION_START(log_dynamic)[source_id].filters.
After implicit conversion through uint32_t, an int16_t -1 becomes 0xFFFFFFFF, indexing log_dynamic far out of bounds and causing the kernel to perform an OOB read and an OOB read-modify-write (LOG_FILTER_SLOT_GET/SET) against memory adjacent to the log_dynamic section.
The written value is a constrained 3-bit log level slot within the targeted 32-bit word, but the target address is attacker-chosen (a small negative offset from log_dynamic) and the write occurs in supervisor mode following a syscall from an unprivileged user thread, providing a kernel memory-corruption / privilege-escalation primitive.
The defect is reachable on any build with CONFIG_USERSPACE=y and CONFIG_LOG_RUNTIME_FILTERING=y. Present from Zephyr v3.3.0 through v4.4.1. The fix replaces the signed bound check with an unsigned comparison: (uint32_t)src_id < log_src_cnt_get(domain_id), which correctly rejects negative inputs. |
| In the Synopsys DesignWare I2C driver (drivers/i2c/i2c_dw.c) operating in target/slave mode, the rx_full interrupt handler gates the write_requested() callback on dw->state != CMD_SEND, and dw->state is only reset to READY on a STOP interrupt. The START_DET interrupt, whose handler in i2c_dw_slave_read_clear_intr_bits() would reset the state on every (re)START, was never added to the enabled interrupt mask in i2c_dw_slave_register(), so that recovery path was dead code.
As a result, if the STOP interrupt is lost (bus glitch/reset, or a concurrent master driving STOP) or the bus master issues a legal WRITE-repeated-START-WRITE sequence with the same direction, the driver remains in CMD_SEND permanently and never invokes write_requested() again for the life of the target.
An I2C master on the same physical bus can deliberately trigger this, causing the I2C target function to malfunction for all subsequent write transactions and desynchronizing consumer framing state (e.g. MCTP-over-I2C), a recoverable-by-reset denial of service of the target peripheral.
The fix unmasks START_DET so the state is reset at every bus (re)START. Impact is availability-only over a local board-level bus; no memory corruption results in the in-tree consumer, whose per-byte buffer write is independently bounds-checked. |
| Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network. |
| Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally. |
| Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network. |
| Improper input validation in Microsoft Office allows an unauthorized attacker to disclose information locally. |
| Improper input validation in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally. |
| Improper neutralization of special elements used in an os command ('os command injection') in Visual Studio Code allows an unauthorized attacker to execute code over a network. |
| Incorrect authorization in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally. |
| Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an authorized attacker to elevate privileges locally. |
| Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network. |
| Heap-based buffer overflow in Windows Storage Port Driver allows an authorized attacker to elevate privileges locally. |
| Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally. |
| Use after free in Windows DNS allows an unauthorized attacker to execute code over a network. |
| Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally. |
| Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally. |
| Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally. |
| Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Teams for Android allows an unauthorized attacker to execute code over a network. |
| Improper link resolution before file access ('link following') in Microsoft OneDrive allows an authorized attacker to elevate privileges locally. |
| Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. |
