[SECURITY] [DSA 3450-1] ecryptfs-utils security update

2016-01-2016:05:00

lists.debian.org

8.4 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.2 High

AI Score

Confidence

High

4.6 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

49.0%

JSON

Debian Security Advisory DSA-3450-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
January 20, 2016 https://www.debian.org/security/faq

Package : ecryptfs-utils
CVE ID : CVE-2016-1572

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.

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

Mailing list: [email protected]

OSVersionArchitecturePackageVersionFilename
Debian8ppc64elecryptfs-utils-dbg< 103-5+deb8u1ecryptfs-utils-dbg_103-5+deb8u1_ppc64el.deb
Debian7sparcecryptfs-utils-dbg< 99-1+deb7u1ecryptfs-utils-dbg_99-1+deb7u1_sparc.deb
Debian7i386libecryptfs-dev< 99-1+deb7u1libecryptfs-dev_99-1+deb7u1_i386.deb
Debian7amd64ecryptfs-utils< 99-1+deb7u1ecryptfs-utils_99-1+deb7u1_amd64.deb
Debian7mipsellibecryptfs-dev< 99-1+deb7u1libecryptfs-dev_99-1+deb7u1_mipsel.deb
Debian7s390python-ecryptfs< 99-1+deb7u1python-ecryptfs_99-1+deb7u1_s390.deb
Debian7i386ecryptfs-utils-dbg< 99-1+deb7u1ecryptfs-utils-dbg_99-1+deb7u1_i386.deb
Debian7powerpcecryptfs-utils-dbg< 99-1+deb7u1ecryptfs-utils-dbg_99-1+deb7u1_powerpc.deb
Debian8arm64libecryptfs0< 103-5+deb8u1libecryptfs0_103-5+deb8u1_arm64.deb
Debian6amd64ecryptfs-utils-dbg< 83-4+squeeze2ecryptfs-utils-dbg_83-4+squeeze2_amd64.deb

OS	Version	Architecture	Package	Version	Filename
Debian	8	ppc64el	ecryptfs-utils-dbg	< 103-5+deb8u1	ecryptfs-utils-dbg_103-5+deb8u1_ppc64el.deb
Debian	7	sparc	ecryptfs-utils-dbg	< 99-1+deb7u1	ecryptfs-utils-dbg_99-1+deb7u1_sparc.deb
Debian	7	i386	libecryptfs-dev	< 99-1+deb7u1	libecryptfs-dev_99-1+deb7u1_i386.deb
Debian	7	amd64	ecryptfs-utils	< 99-1+deb7u1	ecryptfs-utils_99-1+deb7u1_amd64.deb
Debian	7	mipsel	libecryptfs-dev	< 99-1+deb7u1	libecryptfs-dev_99-1+deb7u1_mipsel.deb
Debian	7	s390	python-ecryptfs	< 99-1+deb7u1	python-ecryptfs_99-1+deb7u1_s390.deb
Debian	7	i386	ecryptfs-utils-dbg	< 99-1+deb7u1	ecryptfs-utils-dbg_99-1+deb7u1_i386.deb
Debian	7	powerpc	ecryptfs-utils-dbg	< 99-1+deb7u1	ecryptfs-utils-dbg_99-1+deb7u1_powerpc.deb
Debian	8	arm64	libecryptfs0	< 103-5+deb8u1	libecryptfs0_103-5+deb8u1_arm64.deb
Debian	6	amd64	ecryptfs-utils-dbg	< 83-4+squeeze2	ecryptfs-utils-dbg_83-4+squeeze2_amd64.deb