-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- -------------------------------------------------------------------------
Debian Security Advisory DSA-2382-1                   security@debian.org
http://www.debian.org/security/                        Jonathan Wiltshire
January 07, 2012                       http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : ecryptfs-utils
Vulnerability  : multiple
Problem type   : local
Debian-specific: no
CVE ID         : CVE-2011-1831 CVE-2011-1832 CVE-2011-1834 CVE-2011-1835 
                 CVE-2011-1837 CVE-2011-3145 

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.

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

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iQEcBAEBAgAGBQJPCJaDAAoJEL97/wQC1SS+eKAH/3TKaU7EDHYi53WPas0ZRH7a
HLS/BToZs2DrMHPzW8IMvCWNavFUy5WnEdRNZgpRPcULonK4Iabsp0XskUFMlJOZ
vbWrjdupnDRFYiQWdcrXdmYBM0xKVaXuwND/ZZUL6KWWGUIL5QF+q03nHE4kWSHc
sRORBQ5gqNWqYtrkVjUDntccASW9vLYaVFixGzNy8lol79ps+laRC58TTjLv5s6Q
fTsPyY/tf7Nsmm5mMyihpJ+WKDUZDOfjxkyIwnnInoomwmLJhKorMA0D6Ry6Mud7
2DLuShV/jR8sEkXBPpoa29CIIrW8P/LSvEbJKIGUi55fMDWwkz1DE7ACVU+hRK4=
=xE87
-----END PGP SIGNATURE-----


-- 
To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact
 listmaster@lists.debian.org
Archive: http://lists.debian.org/878vljnybd.fsf@mid.deneb.enyo.de