Test ID:	1.3.6.1.4.1.25623.1.0.841494
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-1898-1)
Summary:	The remote host is missing an update for the 'openssl' package(s) announced via the USN-1898-1 advisory.
Description:	Summary: The remote host is missing an update for the 'openssl' package(s) announced via the USN-1898-1 advisory. Vulnerability Insight: The TLS protocol 1.2 and earlier can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows machine-in-the-middle attackers to obtain plaintext content by observing length differences during a series of guesses in which a provided string potentially matches an unknown string in encrypted and compressed traffic. This is known as a CRIME attack in HTTP. Other protocols layered on top of TLS may also make these attacks practical. This update disables compression for all programs using SSL and TLS provided by the OpenSSL library. To re-enable compression for programs that need compression to communicate with legacy services, define the variable OPENSSL_DEFAULT_ZLIB in the program's environment. Affected Software/OS: 'openssl' package(s) on Ubuntu 10.04, Ubuntu 12.04, Ubuntu 12.10, Ubuntu 13.04. Solution: Please install the updated package(s). CVSS Score: 2.6 CVSS Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2012-4929 http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html BugTraq ID: 55704 http://www.securityfocus.com/bid/55704 Debian Security Information: DSA-2579 (Google Search) http://www.debian.org/security/2012/dsa-2579 Debian Security Information: DSA-2627 (Google Search) http://www.debian.org/security/2013/dsa-2627 Debian Security Information: DSA-3253 (Google Search) http://www.debian.org/security/2015/dsa-3253 http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101366.html HPdes Security Advisory: HPSBUX02866 http://marc.info/?l=bugtraq&m=136612293908376&w=2 HPdes Security Advisory: SSRT101139 http://jvn.jp/en/jp/JVN65273415/index.html http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000129.html http://arstechnica.com/security/2012/09/crime-hijacks-https-sessions/ http://isecpartners.com/blog/2012/9/14/details-on-the-crime-attack.html http://news.ycombinator.com/item?id=4510829 http://security.stackexchange.com/questions/19911/crime-how-to-beat-the-beast-successor http://threatpost.com/en_us/blogs/crime-attack-uses-compression-ratio-tls-requests-side-channel-hijack-secure-sessions-091312 http://threatpost.com/en_us/blogs/new-attack-uses-ssltls-information-leak-hijack-https-sessions-090512 http://www.ekoparty.org/2012/thai-duong.php http://www.iacr.org/cryptodb/data/paper.php?pubkey=3091 http://www.theregister.co.uk/2012/09/14/crime_tls_attack/ https://community.qualys.com/blogs/securitylabs/2012/09/14/crime-information-leakage-attack-against-ssltls https://gist.github.com/3696912 https://github.com/mpgn/CRIME-poc https://threatpost.com/en_us/blogs/demo-crime-tls-attack-091212 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18920 RedHat Security Advisories: RHSA-2013:0587 http://rhn.redhat.com/errata/RHSA-2013-0587.html SuSE Security Announcement: openSUSE-SU-2012:1420 (Google Search) http://lists.opensuse.org/opensuse-updates/2012-10/msg00096.html SuSE Security Announcement: openSUSE-SU-2013:0143 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-01/msg00034.html SuSE Security Announcement: openSUSE-SU-2013:0157 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-01/msg00048.html http://www.ubuntu.com/usn/USN-1627-1 http://www.ubuntu.com/usn/USN-1628-1 http://www.ubuntu.com/usn/USN-1898-1
Copyright	Copyright (C) 2013 Greenbone AG

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