Updated openssl packages that fix two security issues and one bug are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.

A NULL pointer dereference flaw was found in the way OpenSSL parsed Secure/Multipurpose Internet Mail Extensions (S/MIME) messages. An attacker could use this flaw to crash an application that uses OpenSSL to decrypt or verify S/MIME messages. (CVE-2012-1165)

A flaw was found in the PKCS#7 and Cryptographic Message Syntax (CMS) implementations in OpenSSL. An attacker could possibly use this flaw to perform a Bleichenbacher attack to decrypt an encrypted CMS, PKCS#7, or S/MIME message by sending a large number of chosen ciphertext messages to a service using OpenSSL and measuring error response times. (CVE-2012-0884)

This update also fixes a regression caused by the fix for CVE-2011-4619, released via RHSA-2012:0060 and RHSA-2012:0059, which caused Server Gated Cryptography (SGC) handshakes to fail.

All OpenSSL users should upgrade to these updated packages, which contain backported patches to resolve these issues. For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted.

This minor update from upstream fixes two security vulnerabilities with moderate and low impact.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - fix for CVE-2014-0224 - SSL/TLS MITM vulnerability

  - replace expired GlobalSign Root CA certificate in     ca-bundle.crt

  - fix for CVE-2013-0169 - SSL/TLS CBC timing attack     (#907589)

  - fix for CVE-2013-0166 - DoS in OCSP signatures checking     (#908052)

  - enable compression only if explicitly asked for or     OPENSSL_DEFAULT_ZLIB environment variable is set (fixes     CVE-2012-4929 #857051)

  - use __secure_getenv everywhere instead of getenv     (#839735)

  - fix for CVE-2012-2333 - improper checking for record     length in DTLS (#820686)

  - fix for CVE-2012-2110 - memory corruption in     asn1_d2i_read_bio (#814185)

  - fix problem with the SGC restart patch that might     terminate handshake incorrectly

  - fix for CVE-2012-0884 - MMA weakness in CMS and PKCS#7     code (#802725)

  - fix for CVE-2012-1165 - NULL read dereference on bad     MIME headers (#802489)

  - fix for CVE-2011-4108 & CVE-2012-0050 - DTLS plaintext     recovery vulnerability and additional DTLS fixes     (#771770)

  - fix for CVE-2011-4109 - double free in policy checks     (#771771)

  - fix for CVE-2011-4576 - uninitialized SSL 3.0 padding     (#771775)

  - fix for CVE-2011-4619 - SGC restart DoS attack (#771780)

  - add known answer test for SHA2 algorithms (#740866)

  - make default private key length in certificate Makefile     2048 bits (can be changed with PRIVATE_KEY_BITS setting)     (#745410)

  - fix incorrect return value in parse_yesno (#726593)

  - added DigiCert CA certificates to ca-bundle (#735819)

  - added a new section about error states to README.FIPS     (#628976)

  - add missing DH_check_pub_key call when DH key is     computed (#698175)

  - presort list of ciphers available in SSL (#688901)

  - accept connection in s_server even if getaddrinfo fails     (#561260)

  - point to openssl dgst for list of supported digests     (#608639)

  - fix handling of future TLS versions (#599112)

  - added VeriSign Class 3 Public Primary Certification     Authority - G5 and StartCom Certification Authority     certs to ca-bundle (#675671, #617856)

  - upstream fixes for the CHIL engine (#622003, #671484)

  - add SHA-2 hashes in SSL_library_init (#676384)

  - fix CVE-2010-4180 - completely disable code for     SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (#659462)

  - fix CVE-2009-3245 - add missing bn_wexpand return checks     (#570924)

  - fix CVE-2010-0433 - do not pass NULL princ to     krb5_kt_get_entry which in the RHEL-5 and newer versions     will crash in such case (#569774)

  - fix CVE-2009-3555 - support the safe renegotiation     extension and do not allow legacy renegotiation on the     server by default (#533125)

  - fix CVE-2009-2409 - drop MD2 algorithm from EVP tables     (#510197)

  - fix CVE-2009-4355 - do not leak memory when     CRYPTO_cleanup_all_ex_data is called prematurely by     application (#546707)

Changes in openssl :

  - S/MIME verification may erroneously fail

  - Free headers after use in error message

  - Symmetric crypto errors in PKCS7_decrypt

It was discovered that OpenSSL could be made to dereference a NULL pointer when processing S/MIME messages. A remote attacker could use this to cause a denial of service. These issues did not affect Ubuntu 8.04 LTS. (CVE-2006-7250, CVE-2012-1165)

Tavis Ormandy discovered that OpenSSL did not properly perform bounds checking when processing DER data via BIO or FILE functions. A remote attacker could trigger this flaw in services that used SSL to cause a denial of service or possibly execute arbitrary code with application privileges. (CVE-2012-2110).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
58502	CentOS 5 / 6 : openssl (CESA-2012:0426)	Nessus	CentOS Local Security Checks	3/28/2012	1/4/2021	medium
58697	Fedora 17 : openssl-1.0.0h-1.fc17 (2012-4630)	Nessus	Fedora Local Security Checks	4/12/2012	1/11/2021	medium
79531	OracleVM 2.2 : openssl (OVMSA-2014-0007)	Nessus	OracleVM Local Security Checks	11/26/2014	12/5/2022	high
74590	openSUSE Security Update : openssl (openSUSE-SU-2012:0474-1)	Nessus	SuSE Local Security Checks	6/13/2014	1/19/2021	medium
58808	Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 : openssl vulnerabilities (USN-1424-1)	Nessus	Ubuntu Local Security Checks	4/20/2012	9/19/2019	high

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