Out-of-bounds Write resulting in possible Heap-based Buffer Overflow vulnerability was discovered in tools/bdf-converter font conversion utility that is part of Apache NuttX RTOS repository. This standalone program is optional and neither part of NuttX RTOS nor Applications runtime, but active bdf-converter users may be affected when this tool is exposed to external provided user data data (i.e. publicly available automation). This issue affects Apache NuttX: from 6.9 before 12.9.0. Users are recommended to upgrade to version 12.9.0, which fixes the issue.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
| Link | Tags |
|---|---|
| https://github.com/apache/nuttx/pull/16000 | third party advisory issue tracking patch |
| https://lists.apache.org/thread/p4o2lcqgspx3ws1n2p4wmoqbqow1w1pw | vendor advisory |
| http://www.openwall.com/lists/oss-security/2025/06/14/1 | mailing list vendor advisory |