Yasm · Yasm · CVE-2021-33455
**Name of the Vulnerable Software and Affected Versions**
yasm version 1.3.0
**Description**
An issue was discovered in yasm, which involves a NULL pointer dereference in the `do directive()` function located in `modules/preprocs/nasm/nasm-pp.c`.
**Recommendations**
For yasm version 1.3.0, consider avoiding the use of the `do directive()` function until a patch is available. As a temporary workaround, restrict access to the `modules/preprocs/nasm/nasm-pp.c` module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.