The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in print-hncp.c:print_prefix().
The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in print-hncp.c:print_prefix().
The product reads data past the end, or before the beginning, of the intended buffer.
https://cwe.mitre.org/data/definitions/125.html →Open in CWE collection →The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.
https://cwe.mitre.org/data/definitions/665.html →Open in CWE collection →The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
https://capec.mitre.org/data/definitions/26.html →Open in CAPEC collection →This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.
https://capec.mitre.org/data/definitions/29.html →Open in CAPEC collection →An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
https://capec.mitre.org/data/definitions/540.html →Open in CAPEC collection →| Product | Vendor | Status |
|---|---|---|
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| tcpdump | Tracked | |
| debian_linux | * | Tracked |
| enterprise_linux | * | Tracked |
| fedora | * | Tracked |
| leap | * | Tracked |
| mac_os_x | * | Tracked |
| tcpdump | * | Tracked |