Debian Security Advisory DSA 2382-1 (ecryptfs-utils)

# OpenVAS Vulnerability Test
# $Id: deb_2382_1.nasl 6612 2017-07-07 12:08:03Z cfischer $
# Description: Auto-generated from advisory DSA 2382-1 (ecryptfs-utils)
#
# Authors:
# Thomas Reinke <[email protected]>
#
# Copyright:
# Copyright (c) 2012 E-Soft Inc. http://www.securityspace.com
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# or at your option, GNU General Public License version 3,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

include("revisions-lib.inc");
tag_insight = "Several problems have been discovered in ecryptfs-utils, a cryptographic
filesystem for Linux.

CVE-2011-1831

Vasiliy Kulikov of Openwall and Dan Rosenberg discovered that eCryptfs
incorrectly validated permissions on the requested mountpoint. A local
attacker could use this flaw to mount to arbitrary locations, leading
to privilege escalation.

CVE-2011-1832

Vasiliy Kulikov of Openwall and Dan Rosenberg discovered that eCryptfs
incorrectly validated permissions on the requested mountpoint. A local
attacker could use this flaw to unmount to arbitrary locations, leading
to a denial of service.

CVE-2011-1834

Dan Rosenberg and Marc Deslauriers discovered that eCryptfs incorrectly
handled modifications to the mtab file when an error occurs. A local
attacker could use this flaw to corrupt the mtab file, and possibly
unmount arbitrary locations, leading to a denial of service.

CVE-2011-1835

Marc Deslauriers discovered that eCryptfs incorrectly handled keys when
setting up an encrypted private directory. A local attacker could use
this flaw to manipulate keys during creation of a new user.

CVE-2011-1837

Vasiliy Kulikov of Openwall discovered that eCryptfs incorrectly handled
lock counters. A local attacker could use this flaw to possibly overwrite
arbitrary files.

We acknowledge the work of the Ubuntu distribution in preparing patches
suitable for near-direct inclusion in the Debian package.

For the oldstable distribution (lenny), these problems have been fixed in
version 68-1+lenny1.

For the stable distribution (squeeze), these problems have been fixed in
version 83-4+squeeze1.

For the testing distribution (wheezy) and the unstable distribution (sid),
these problems have been fixed in version 95-1.

We recommend that you upgrade your ecryptfs-utils packages.";
tag_summary = "The remote host is missing an update to ecryptfs-utils
announced via advisory DSA 2382-1.";

tag_solution = "https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202382-1";

if(description)
{
 script_id(70701);
 script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1834",
               "CVE-2011-1835", "CVE-2011-1837", "CVE-2011-3145");
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_version("$Revision: 6612 $");
 script_tag(name:"last_modification", value:"$Date: 2017-07-07 14:08:03 +0200 (Fri, 07 Jul 2017) $");
 script_tag(name:"creation_date", value:"2012-02-11 03:26:49 -0500 (Sat, 11 Feb 2012)");
 script_name("Debian Security Advisory DSA 2382-1 (ecryptfs-utils)");


 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2012 E-Soft Inc. http://www.securityspace.com");
 script_family("Debian Local Security Checks");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "insight" , value : tag_insight);
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name:"qod_type", value:"package");
 script_tag(name:"solution_type", value:"VendorFix");
 exit(0);
}

#
# The script code starts here
#

include("pkg-lib-deb.inc");
res = "";
report = "";
if((res = isdpkgvuln(pkg:"ecryptfs-utils", ver:"68-1+lenny1", rls:"DEB5.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs-dev", ver:"68-1+lenny1", rls:"DEB5.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs0", ver:"68-1+lenny1", rls:"DEB5.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"ecryptfs-utils", ver:"83-4+squeeze1", rls:"DEB6.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"ecryptfs-utils-dbg", ver:"83-4+squeeze1", rls:"DEB6.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs-dev", ver:"83-4+squeeze1", rls:"DEB6.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs0", ver:"83-4+squeeze1", rls:"DEB6.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"ecryptfs-utils", ver:"95-1", rls:"DEB7.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"ecryptfs-utils-dbg", ver:"95-1", rls:"DEB7.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs-dev", ver:"95-1", rls:"DEB7.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"libecryptfs0", ver:"95-1", rls:"DEB7.0")) != NULL) {
    report += res;
}
if((res = isdpkgvuln(pkg:"python-ecryptfs", ver:"95-1", rls:"DEB7.0")) != NULL) {
    report += res;
}

if(report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}