Description
RT-Thread through 5.0.2 generates random numbers with a weak algorithm of "seed = 214013L * seed + 2531011L; return (seed >> 16) & 0x7FFF;" in calc_random in drivers/misc/rt_random.c.
References
- https://github.com/RT-Thread/rt-thread/issues/8283
- https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt
- https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos/
- https://seclists.org/fulldisclosure/2024/Mar/28
- [oss-security] 20240305 HNS-2024-05 - HN Security Advisory - Multiple vulnerabilities in RT-Thread RTOS mailing-list