chromium-browser: chromium-browser: Out of bounds read in Skia

Out of bounds read in Skia in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

BACnet Stack: Out-of-Bounds Read in AtomicWriteFile Record Decoder via Unbounded returnedRecordCount

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, an out-of-bounds read vulnerability exists in bacnet-stack's AtomicWriteFile record-access path. The bug is caused by a mismatch between an externally controlled returnedRecordCount field and the fixed-size internal fileData[] array used by BACNET_ATOMIC_WRITE_FILE_DATA. This issue has been patched in versions 1.4.4 and 1.5.1.

BACnet Stack: Client-Side Out-of-Bounds Read in AtomicReadFile-ACK Record-Access Handling via RecordCount / fileData[] Mismatch

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, there is a client-side out-of-bounds read in the AtomicReadFile-ACK record-access handling path. The issue is caused by a mismatch between a remote returnedRecordCount value and the fixed local fileData[] array capacity in BACNET_ATOMIC_READ_FILE_DATA. The ACK decode path preserves the remote RecordCount, discards storage for excess records without truncating that count, and a downstream sink later iterates over the original RecordCount and indexes fileData[i] out of bounds. This issue has been patched in versions 1.4.4 and 1.5.1.

Gcc: out-of-bounds read in std::from_chars

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

chromium-browser: chromium-browser: Information disclosure via out-of-bounds read in Skia

Out of bounds read in Skia in Google Chrome prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Information disclosure via out-of-bounds read in Skia

Out of bounds read in Skia in Google Chrome prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: information disclosure via out-of-bounds read in compositing

Out of bounds read in Compositing in Google Chrome prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Out of bounds read in Media

Out of bounds read in Media in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Information disclosure via crafted HTML page

Out of bounds read in Skia in Google Chrome on on Mac prior to 157.0.8103.78 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

ICMPv4 Record Route / Timestamp option: stack OOB read via ptr underflow in icmpv4.c

An integer underflow in Zephyr's IPv4 option handling allows a remote, unauthenticated attacker to read stack memory. When replying to an ICMP Echo Request that carries an IPv4 Record Route or Timestamp option, icmpv4_update_record_route() and icmpv4_update_time_stamp() in subsys/net/ip/icmpv4.c compute the length of the already recorded data as ptr - ptr_offset in uint8_t arithmetic. The attacker-controlled Pointer field is checked against the option length but not against the RFC 791 minimum (4 for Record Route, 5 for Timestamp), so a smaller value wraps the length to up to 252 bytes. net_pkt_write() then reads past the 40-byte opt_data stack buffer and up to 213 bytes of stack memory, which can include stack and heap pointers, are returned in the ICMP Echo Reply. A single packet triggers the leak and the device does not crash, so it can be repeated. Devices built with CONFIG_NET_IPV4_HDR_OPTIONS, which CONFIG_NET_IPV4_IGMP selects, are affected.

chromium-browser: chromium-browser: Out of bounds read in Skia

Out of bounds read in Skia in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Information disclosure via out-of-bounds read in Skia

Out of bounds read in Skia in Google Chrome prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

PostgreSQL dict_int reads beyond zero-length tokens

Buffer over-read in PostgreSQL dict_int allows a database user to disclose portions of server memory, via a zero-length token. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Out‑of‑Bounds Stack Read via DMA Fill Operation

In fill of dma.rs, there is a possible way to trigger an out of bounds stack read during direct memory access fills due to a logic error. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

PostgreSQL MERGE can place the wrong row in a trigger transition table

Inconsistent transition-capture state in PostgreSQL MERGE allows a table data modifier to make an AFTER trigger process the wrong new row, via a partitioned table MERGE that performs an INSERT before an UPDATE. Within major versions 15-18, minor versions before PostgreSQL 18.7, 17.12, 16.16, and 15.20 are affected. Versions before PostgreSQL 15 are unaffected.

MCUboot image hash span is not bounded against the slot, allowing a read past the flash area during image validation

bootutil_img_hash() computes the image digest over ih_hdr_size + ih_img_size + ih_protect_tlv_size bytes, all three taken from the candidate image's header, and reads that span out of the slot without checking that it fits in the flash area. The three sizes are also summed without an overflow check. Nothing earlier on the validation path bounds the whole span either: bootutil_img_validate() compares the image size against bootutil_max_image_size() only after the hash has been computed. The callers bound part of the span, or none of it: On the swap and overwrite upgrade path, boot_validate_slot() first runs the image header check (boot_is_header_valid(), later boot_check_header_valid()). Before MCUboot 2.2.0 that check covered only ih_hdr_size + ih_img_size, so for every image the protected-TLV area (ih_protect_tlv_size, a uint16_t, up to 65535 bytes) was hashed without being bounded. From 2.2.0 the check includes ih_protect_tlv_size, except for a compressed image in the secondary slot when MCUBOOT_DECOMPRESS_IMAGES (CONFIG_BOOT_DECOMPRESSION) is enabled, which leaves the same gap of up to 64 KB. The serial recovery image-list and image-state handlers (bs_list() and bs_set() in boot/boot_serial/src/boot_serial.c) and Zephyr's single-slot and firmware loaders (boot/zephyr/single_loader.c, boot/zephyr/firmware_loader.c) call bootutil_img_validate() with no header check at all, so on those paths ih_img_size is unbounded as well. The image is hashed before its signature is checked, so anyone who can place an image in a slot (an OTA or SMP update delivered through the application, or serial recovery) reaches this read before authentication. Whether a malformed header produces an actual read beyond the area depends on the flash backend: Backends whose flash_area_read() bounds-checks the request (Zephyr, Espressif, NuttX, Mbed) return an error once the chunked read crosses the end of the area. Validation fails and the image is rejected, with no over-read. With MCUBOOT_HASH_STORAGE_DIRECTLY (Zephyr CONFIG_BOOT_IMG_HASH_DIRECTLY_ON_STORAGE, available from 2.2.0, not enabled by default) the span is hashed through a single direct pointer into memory-mapped flash, with no bounds check. The Cypress PSoC6 port's flash_area_read() (boot/cypress/cy_flash_pal/cy_flash_map.c, from 1.6.0) does not bound the read: its assert()s compare against the area's absolute offset rather than its size, and it copies with memcpy(). The bytes read past the area feed only the digest, which is compared internally and never returned, so nothing is disclosed. The realistic effect is a read fault during image validation: up to 64 KB past the slot on the upgrade path, and potentially much further on the paths that skip the header check. Where validation is repeated at every boot (a pending upgrade, or the single-slot loader checking its image), the fault can recur on each reset and keep the device from booting. The fix makes bootutil_img_hash() add the three sizes with boot_u32_safe_add() and reject an image whose span, including the sector offset used in swap-using-offset mode, does not fit in the flash area, before any of it is hashed. Because the bound is applied where the bytes are read, it covers every caller.

TLV iterator does not bound each entry against the declared TLV area in MCUboot bootutil

The MCUboot TLV iterator bootutil_tlv_iter_next() in boot/bootutil/src/tlv.c walks image trailer TLVs with a single loop guard (it->tlv_off < it->tlv_end) and advances by sizeof(struct image_tlv) + tlv.it_len using the attacker-controlled it_len field, without validating that the entry's header or payload stays within it->tlv_end. As a result the 4-byte header read can extend up to 3 bytes past the declared TLV area, and the returned (off, len) can describe a payload that runs past it. The path is pre-authentication: TLVs are parsed during bootutil_img_validate() before the signature is verified, and a crafted image can be presented through DFU / serial-recovery / OTA. However the impact is contained by surrounding guards: bootutil_img_validate() first rejects a TLV area larger than bootutil_max_image_size(), the default LOAD_IMAGE_DATA sink is flash_area_read() which bounds-checks against the flash partition and fails an out-of-partition read, and every payload consumer (EXPECTED_HASH_TLV, EXPECTED_KEY_TLV, EXPECTED_SIG_TLV, IMAGE_TLV_SEC_CNT) clamps len against a fixed buffer before copying. The residual effect in a default flash build is therefore an out-of-region read confined to the attacker's own slot partition whose result is never observable, yielding at worst a clean validation failure rather than memory corruption or information disclosure. A genuine (though still bounded) out-of-bounds read remains under the non-default MCUBOOT_RAM_LOAD configuration, where LOAD_IMAGE_DATA is an unchecked memcpy. The fix is to validate each entry's header and payload against it->tlv_end inside the iterator.

PostgreSQL parallel B-tree array scan reads beyond array bounds

Buffer over-read in PostgreSQL parallel B-tree scans allows an object creator to read attacker-chosen server-memory addresses, via a function incorrectly marked PARALLEL SAFE or STABLE to make participating workers build different scan-key arrays. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.

Windows Graphics Kernel Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.

In s_copy_host_apb_param of multiple files, there is a possible way to trigger an out of bounds read in the video decoder command queue due to a logic error. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.