Security Information / 2016 / Security Information -- DSA-3450-1 ecryptfs-utils

Debian Security Advisory

DSA-3450-1 ecryptfs-utils -- security update

Date Reported:

20 Jan 2016

Affected Packages:

ecryptfs-utils

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2016-1572.

More information:

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.