Unspecified vulnerability in gzip 1.3.5 allows context-dependent attackers to cause a denial of service (crash) via a crafted GZIP (gz) archive, which results in a NULL dereference.

Array index error in the make_table function in unlzh.c in the LZH decompression component in gzip 1.3.5, when running on certain platforms, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted GZIP archive that triggers an out-of-bounds write, aka a "stack modification vulnerability."

Buffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a crafted leaf count table that causes a write to a negative index.

Buffer overflow in the make_table function in the LHZ component in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a crafted decoding table in a GZIP archive.

unlzh.c in the LHZ component in gzip 1.3.5 allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted GZIP archive.