Versions mentioned in the description apply to the upstream
Remediation section below for
Ubuntu:19.04 relevant versions.
A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. 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.
e2fsprogs to version 1.44.6-1ubuntu0.2 or higher.