fig2dev buffer overflow vulnerability (CNVD-2021-79776)

fig2dev is a tool for printing and exporting .fig format files. A buffer error vulnerability exists in the ‘read_textobject’ function of the read.c file in fig2dev version 3.2.7b. The vulnerability stems from a networked system or product that does not properly validate data boundaries when performing operations on memory, resulting in incorrect read and write operations being performed to other memory locations associated with it. An attacker could use this vulnerability to cause a buffer overflow or heap overflow, among other things.