ID

VAR-201506-0231

CVE

CVE-2015-1788

TITLE

OpenSSL of crypto/bn/bn_gf2m.c of BN_GF2m_mod_inv Service disruption in functions (DoS) Vulnerabilities

DESCRIPTION

The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication. OpenSSL is prone to denial-of-service vulnerability. An attacker may exploit this issue to cause a denial-of-service condition. CVE-2014-8176 Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered that an invalid memory free could be triggered when buffering DTLS data. This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code. This issue only affected the oldstable distribution (wheezy). CVE-2015-1788 Joseph Barr-Pixton discovered that an infinite loop could be triggered due to incorrect handling of malformed ECParameters structures. This could allow remote attackers to cause a denial of service. This could allow remote attackers to cause a denial of service (crash) via crafted ASN.1-encoded PKCS#7 blobs. This could allow remote attackers to cause a denial of service (crash). This could allow remote attackers to cause a denial of service. For the oldstable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u17. For the stable distribution (jessie), these problems have been fixed in version 1.0.1k-3+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 1.0.2b-1. For the unstable distribution (sid), these problems have been fixed in version 1.0.2b-1. We recommend that you upgrade your openssl packages. ============================================================================ Ubuntu Security Notice USN-2639-1 June 11, 2015 openssl vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.04 - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Several security issues were fixed in OpenSSL. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.04: libssl1.0.0 1.0.1f-1ubuntu11.4 Ubuntu 14.10: libssl1.0.0 1.0.1f-1ubuntu9.8 Ubuntu 14.04 LTS: libssl1.0.0 1.0.1f-1ubuntu2.15 Ubuntu 12.04 LTS: libssl1.0.0 1.0.1-4ubuntu5.31 After a standard system update you need to reboot your computer to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2639-1 CVE-2014-8176, CVE-2015-1788, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791, CVE-2015-1792 Package Information: https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu11.4 https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu9.8 https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.15 https://launchpad.net/ubuntu/+source/openssl/1.0.1-4ubuntu5.31 . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-15:10.openssl Security Advisory The FreeBSD Project Topic: Multiple OpenSSL vulnerabilities Category: contrib Module: openssl Announced: 2015-06-12 Affects: All supported versions of FreeBSD. Corrected: 2015-06-11 19:07:45 UTC (stable/10, 10.1-STABLE) 2015-06-12 07:23:55 UTC (releng/10.1, 10.1-RELEASE-p12) 2015-06-11 19:39:27 UTC (stable/9, 9.3-STABLE) 2015-06-12 07:23:55 UTC (releng/9.3, 9.3-RELEASE-p16) 2015-06-11 19:39:27 UTC (stable/8, 8.4-STABLE) 2015-06-12 07:23:55 UTC (releng/8.4, 8.4-RELEASE-p30) CVE Name: CVE-2015-1788, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791 CVE-2015-1792, CVE-2015-4000 For general information regarding FreeBSD Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit <URL:https://security.FreeBSD.org/>. I. Background FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. II. Problem Description A vulnerability in the TLS protocol would allow a man-in-the-middle attacker to downgrade vulnerable TLS connections using ephemeral Diffie-Hellman key exchange to 512-bit export-grade cryptography. This vulnerability is also known as Logjam [CVE-2015-4000]. [CVE-2015-1788] X509_cmp_time does not properly check the length of the ASN1_TIME string and can read a few bytes out of bounds. In addition, X509_cmp_time accepts an arbitrary number of fractional seconds in the time string. [CVE-2015-1789] The PKCS#7 parsing code does not handle missing inner EncryptedContent correctly. [CVE-2015-1790] When verifying a signedData message the CMS code can enter an infinite loop if presented with an unknown hash function OID. [CVE-2015-1792] If a NewSessionTicket is received by a multi-threaded client when attempting to reuse a previous ticket then a race condition can occur, potentially leading to a double free of the ticket data. [CVE-2015-1791] The OpenSSL advisory also describes a problem that is identified as CVE-2014-8176, which is already fixed by an earlier FreeBSD Errata Notice, FreeBSD-EN-15:02.openssl. III. Impact A man-in-the-middle attacker may be able to downgrade vulnerable TLS connections using ephemeral Diffie-Hellman key exchange to 512-bit export-grade cryptography. [CVE-2015-4000]. On FreeBSD 10.1, the patch contains a countermeasure for clients by rejecting handshakes with DH parameters shorter than 768 bits. An attacker who is able to use a certificate to authenticate with a remote system perform denial of service against any system which processes public keys, certificate requests or certificates. [CVE-2015-1788]. This affects FreeBSD 10.1 only, as the problem was no longer exist in OpenSSL 0.9.8 series since July 2012. An attacker can use the CVE-2015-1789 issue by using specifically crafted certificates and CRLs of various sizes and potentially cause a segmentation fault, resulting in a DoS on applications that verify certificates or CRLs. An attacker who can create specifically crafted malformed ASN.1-encoded PKCS#7 blobs with missing content and trigger a NULL pointer dereference on parsing. [CVE-2015-1790]. Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 structures from untrusted sources are affected. OpenSSL clients and servers are not affected. An attacker can perform denial of service against any system which verifies signedData messages using the CMS code. [CVE-2015-1792] An attacker may be able to crash multi-thread applications that supports resumed TLS handshakes. [CVE-2015-1791] IV. Workaround No workaround is available. V. Solution Perform one of the following: 1) Upgrade your vulnerable system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. 2) To update your vulnerable system via a binary patch: Systems running a RELEASE version of FreeBSD on the i386 or amd64 platforms can be updated via the freebsd-update(8) utility: # freebsd-update fetch # freebsd-update install 3) To update your vulnerable system via a source code patch: The following patches have been verified to apply to the applicable FreeBSD release branches. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. [FreeBSD 10.1] # fetch https://security.FreeBSD.org/patches/SA-15:10/openssl-10.1.patch # fetch https://security.FreeBSD.org/patches/SA-15:10/openssl-10.1.patch.asc # gpg --verify openssl-10.1.patch.asc [FreeBSD 9.3 and 8.4] # fetch https://security.FreeBSD.org/patches/SA-15:10/openssl-8.4.patch # fetch https://security.FreeBSD.org/patches/SA-15:10/openssl-8.4.patch.asc # gpg --verify openssl-8.4.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile the operating system using buildworld and installworld as described in <URL:https://www.FreeBSD.org/handbook/makeworld.html>. Restart all deamons using the library, or reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/8/ r284286 releng/8.4/ r284295 stable/9/ r284286 releng/9.3/ r284295 stable/10/ r284285 releng/10.1/ r284295 - ------------------------------------------------------------------------- To see which files were modified by a particular revision, run the following command, replacing NNNNNN with the revision number, on a machine with Subversion installed: # svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base Or visit the following URL, replacing NNNNNN with the revision number: <URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN> VII. References <URL:https://www.openssl.org/news/secadv_20150611.txt> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1788> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1789> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1790> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1791> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1792> <URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4000> The latest revision of this advisory is available at <URL:https://security.FreeBSD.org/advisories/FreeBSD-SA-15:10.openssl.asc> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.1.4 (FreeBSD) iQIcBAEBCgAGBQJVeopGAAoJEO1n7NZdz2rnzhQP/Ak6el188Y+7QbEYVfCZ7eG8 BQLj5TMGHV5swSKVlPcEuBlMwTjpgB5Gqhc8luDS0eIAuJGdcMPSrZDdXxWQFtPf pbfIwp/ElFc7d6ut0Y8t6fFLJbhTOoHJpzTGkFRfJkjinGOx7OZQPeLJsxSubbnL JKugZ3diH6yk6IPMf9SvhO/kYXUF1VbXQvHNTnqgdhFVkgF6tK22Pkl2XoJ9EHbh vBXft1yJwiYlZ//DxZuScTUj1pHYzK3bOpg//REJMWCMj1RVwQr2EyDa0Q2cT02d eRnSZykXD69eybyzEck+BvwnUYYJICimnHuE5t78UIr0D/NWyOAZTQ99z5TID5aV HXkcil+1E/Q+xBB4+5UOOnESf6cmiWwewQOVvD26ZY39E6oJXvsrWnyxIuCG6DL9 sLtxB6iTYlTX5Civ/VJX8H7rFiw4UwMembthvGzck22026iHjplWM3GCWz0E8O3R PrXBHjAzNFawK3owNMxFSUFTuFw/qY7EEwJ3SKCEC+hoxcLOl26NMxrQKRIAUk+I MMOaZfvOh2uM19y9SJZz8+sqU8gIm7ihDm5fuSkO8kY0jdvLwyS9bXAejN/lZ6oJ TyfTDDyXDOdaPpnpQehh6vQV0NiaJ+WXfGhfiE8/G/t6b1E0LlCaaGJTpYkildGe vVCM4Nyx4S9WDFOi76ug =dyhg -----END PGP SIGNATURE----- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Note: the current version of the following document is available here: https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_n a-c05131044 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c05131044 Version: 1 HPSBMU03589 rev.1 - HPE Version Control Repository Manager (VCRM), Remote Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2016-05-12 Last Updated: 2016-05-12 Potential Security Impact: Remote Denial of Service (DoS) Source: Hewlett Packard Enterprise, Product Security Response Team VULNERABILITY SUMMARY Several potential security vulnerabilities have been identified with HPE Version Control Repository Manager (VCRM) on Windows and Linux. References: CVE-2015-1788 CVE-2015-1789 CVE-2015-1791 CVE-2015-1792 CVE-2015-1790 PSRT110093 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HPE Version Control Repository Manager prior to 7.5.1 BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2015-1788 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3 CVE-2015-1789 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3 CVE-2015-1791 (AV:N/AC:M/Au:N/C:P/I:P/A:P) 6.8 CVE-2015-1792 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 CVE-2015-1790 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION HPE has provided the following software updates to resolve the vulnerabilities for the impacted versions of HPE Version Control Repository Manager (VCRM) on Windows and Linux. Please download the latest version of HPE Version Control Repository Manager (VCRM) (7.5.1) from the following location: VCRM for Windows: https://www.hp.com/swpublishing/MTX-b59b11be53744759a650eadeb4 VCRM for Linux is only available only with HPE Systems Insight Manager (HPE SIM): https://www.hp.com/go/sim HISTORY Version:1 (rev.1) - 12 May 2016 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability with any HPE supported product, send Email to: security-alert@hpe.com Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB. 3C = 3COM 3P = 3rd Party Software GN = HPE General Software HF = HPE Hardware and Firmware MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PV = ProCurve ST = Storage Software UX = HP-UX Copyright 2016 Hewlett Packard Enterprise Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett Packard Enterprise and the names of Hewlett Packard Enterprise products referenced herein are trademarks of Hewlett Packard Enterprise in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners

AFFECTED PRODUCTS