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Debian alert DSA-2382-1 (ecryptfs-utils)

From:  Jonathan Wiltshire <jmw@debian.org>
To:  debian-security-announce@lists.debian.org
Subject:  [SECURITY] [DSA 2382-1] ecryptfs-utils security update
Date:  Sat, 07 Jan 2012 19:48:38 +0100
Message-ID:  <878vljnybd.fsf@mid.deneb.enyo.de>
Archive-link:  Article, Thread

-----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


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