Jann Horn discovered that the setuid-root mount.ecryptfs_private helper in the ecryptfs-utils would mount over any target directory that the user owns, including a directory in procfs. A local attacker could use this flaw to escalate his privileges. For the oldstable distribution (wheezy), this problem has been fixed in version 99-1+deb7u1. For the stable distribution (jessie), this problem has been fixed in version 103-5+deb8u1. We recommend that you upgrade your ecryptfs-utils packages.
Jann Horn discovered that the setuid-root mount.ecryptfs_private helper in the ecryptfs-utils would mount over any target directory that the user owns, including a directory in procfs. A local attacker could use this flaw to escalate his privileges.
For the oldstable distribution (wheezy), this problem has been fixed in version 99-1+deb7u1.
For the stable distribution (jessie), this problem has been fixed in version 103-5+deb8u1.
We recommend that you upgrade your ecryptfs-utils packages.
Vulmon