A vulnerability, which was classified as critical, has been found in GNU cflow up to 1.8. Affected by this issue is the function yylex of the file c.c of the component Lexer. The manipulation leads to buffer overflow. Local access is required to approach this attack. 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.319232 | technical description vdb entry |
| https://vuldb.com/?ctiid.319232 | signature permissions required |
| https://vuldb.com/?submit.622329 | third party advisory |
| https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00001.html | related |
| https://drive.google.com/file/d/17lkJ5bSiQZoXLTg3bK-rGBt3kahN9Xse/view?usp=drive_link | exploit |
| https://www.gnu.org/ | product |