Out-of-bounds

A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparsemultipleoptions parses CoAP options that may occur multiple consecutive times in a single packet. While processing th...

Heap overflow

Buffer over-reads were discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr ...

CVE-2020-12883

CVE-2020-12883 affects the CoAP library in ARM Mbed OS 5.15.3. The vulnerability arises in sn_coap_parser_options_parse(), which parses CoAP input linearly but fails to verify the input length against bytes read when processing extended option delta/length, and computes message_left incorrectly f...

CVE-2020-12883

Buffer over-reads were discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr ...

CVE-2020-12884

CVE-2020-12884 affects Arm Mbed OS 5.15.3 CoAP library. The CoAP parser option handling (sn_coap_parser_options_parse_multiple_options) can read past the packet boundary: packet_data_pptr is advanced by option_len without a prior out-of-bounds check, while temp_parsed_uri_query_ptr validation use...

CVE-2020-12884

A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparsemultipleoptions parses CoAP options that may occur multiple consecutive times in a single packet. While processing th...

CVE-2020-12885

An infinite loop was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparsemultipleoptions parses CoAP options in a while loop. This loop's exit condition is computed using the previously...

CVE-2020-12885

CVE-2020-12885 affects the CoAP library in Arm Mbed OS 5.15.3. The infinite loop is in the CoAP parser function sn_coap_parser_options_parse_multiple_options() , where the loop exit is based on the previously allocated heap memory for parsed options. If the input heap memory calculation yields ze...

CVE-2020-12886

The CVE affects Arm Mbed OS CoAP library (mbed-coap) in version 5.15.3. The root cause is in sn_coap_parser_options_parse(): the length of the token is read from the message but not validated against the input buffer before accessing the token, enabling a memory access outside the buffer (buffer ...

CVE-2020-12886

A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses the CoAP packet header starting from the message token. The length of the token in the received message is...

CVE-2020-12887

Memory leaks were discovered in the CoAP library in Arm Mbed OS 5.15.3 when using the Arm mbed-coap library 5.1.5. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses the CoAP option number field of all options present in the input packet...

CVE-2020-12887

CVE-2020-12887 concerns memory leak in the Arm Mbed OS CoAP library: when using mbed-coap 5.1.5, the sn_coap_parser_options_parse() function parses option numbers by summing previous option numbers and deltas, with 16-bit integers and no overflow checks. This can cause a crafted packet to wrap an...

CVE-2020-13844

A new speculative side-channel vulnerability was found that affects the ARM processor's code, 'Straight-line speculation.' This flaw allows a local attacker to infer cache contents through measuring timing access. The highest threat from this vulnerability is to confidentiality. Mitigation...

Linux/ARM 0.0.0.0:1337/TCP Bindshell Shellcode

100 bytes small null-free Linux/ARM shellcode that binds /bin/sh to 0.0.0.0:1337/TCP. Title: Linux/ARM Raspberry Pi - Bind 0.0.0.0:1337/TCP Shell /bin/sh + Null-Free Shellcode 100 bytes Date: 2020-06-09 Architecture: armv6l GNU/Linux Website: http://www.theanuragsrivastava.com Author: Anurag...

Linux/ARM execve /bin/dash Shellcode

32 bytes small Linux/ARM execve /bin/dash shellcode. Title: Linux/ARM - execve /bin/dash Shellcode 32 bytes Date: 2020-06-08 Category: Shellcode Tested: armv7l 32-bitRaspberry Pi 2 Model B OS: Raspbian Buster Lite Author: Anurag Srivastava Description: execve shellcode / Objdump...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:1630-1)

This update for xen fixes the following issues : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling SRBDS or 'CrossTalk'...

Linux/ARM - Bind (0.0.0.0:1337/TCP) Shell (/bin/sh) + Null-Free Shellcode (100 bytes)

Title: Linux/ARM Raspberry Pi - Bind 0.0.0.0:1337/TCP Shell /bin/sh + Null-Free Shellcode 100 bytes Date: 2020-06-09 Architecture: armv6l GNU/Linux Website: http://www.theanuragsrivastava.com Author: Anurag Srivastava / bindwala: file format elf32-littlearm Disassembly of section .text: 00010054 ...

Linux/ARM - execve /bin/dash Shellcode (32 bytes)

Title: Linux/ARM - execve /bin/dash Shellcode 32 bytes Category: Shellcode Tested: armv7l 32-bitRaspberry Pi 2 Model B OS: Raspbian Buster Lite Author: Anurag Srivastava Description: execve shellcode / Objdump pi@raspberrypi:/hex $ objdump -d ed1 ed1: file format elf32-littlearm Disassembly of...

ARM Armv8-A Information Disclosure Vulnerability

ARM Armv8-A is a processor architecture from ARM UK. A security vulnerability exists in Arm Armv8-A. A local attacker could exploit this vulnerability with side-channel analysis to cause an information disclosure...

CVE-2020-13844

Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."...