Heap-based buffer overflow in the processcopyin function in GNU Cpio 2.11 allows remote attackers to cause a denial of service via a large block value in a cpio archive.

cpio 2.11, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive.

The cpiosafernamesuffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.