An issue has been found in e2fsprogs, a package that contains ext2/ext3/ext4 file system utilities. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

For Debian 8 Jessie, this problem has been fixed in version 1.42.12-2+deb8u2.

We recommend that you upgrade your e2fsprogs packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS