An integer underflow vulnerability exists in the OLE Document DIFAT Parser functionality of catdoc 0.95. A specially crafted malformed file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

An integer overflow vulnerability exists in the OLE Document File Allocation Table Parser functionality of catdoc 0.95. A specially crafted malformed file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

The oleinit function in ole.c in catdoc 0.95 allows remote attackers to cause a denial of service (heap-based buffer underflow and application crash) or possibly have unspecified other impact via a crafted file, i.e., data is written to memory addresses before the beginning of the tmpBuf buffer.

Catdoc v0.95 was discovered to contain a global buffer overflow via the function processfile at /src/reader.c.

Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/xlsparse.c.

Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.

Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below.

Last updated 16 July 2026

Integer overflow vulnerability has been found in "builtin.c" program file of gawk (dosub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.

Heap buffer overflow in gawk