A vulnerability has been found in NASM Netwide Assember 2.17rc0. Affected by this issue is the function do_directive of the file preproc.c. The manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.319376 | technical description vdb entry |
| https://vuldb.com/?ctiid.319376 | signature permissions required |
| https://vuldb.com/?submit.623184 | third party advisory |
| https://bugzilla.nasm.us/show_bug.cgi?id=3392933 | issue tracking |
| https://drive.google.com/file/d/11vEV1vMHXO4BrDGhvWAMm0Qo1woiUwVV/view?usp=drive_link | exploit |