ID

VAR-201506-0496

CVE

CVE-2015-1791

TITLE

OpenSSL of ssl/s3_clnt.c of ssl3_get_new_session_ticket Service disruption in functions (DoS) Vulnerabilities

DESCRIPTION

Race condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier. OpenSSL is prone to a race-condition security vulnerability. The impact of this issue is currently unknown. We will update this BID when more information emerges. The following are vulnerable: OpenSSL 1.0.2 prior to 1.0.2b OpenSSL 1.0.1 prior to 1.0.1n OpenSSL 1.0.0 prior to 1.0.0s OpenSSL 0.9.8 prior to 0.9.8zg. OpenSSL Security Advisory [11 Jun 2015] ======================================= DHE man-in-the-middle protection (Logjam) ==================================================================== A vulnerability in the TLS protocol allows 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 known as Logjam (CVE-2015-4000). OpenSSL has added protection for TLS clients by rejecting handshakes with DH parameters shorter than 768 bits. This limit will be increased to 1024 bits in a future release. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n Fixes for this issue were developed by Emilia Käsper and Kurt Roeckx of the OpenSSL development team. Malformed ECParameters causes infinite loop (CVE-2015-1788) =========================================================== Severity: Moderate When processing an ECParameters structure OpenSSL enters an infinite loop if the curve specified is over a specially malformed binary polynomial field. This can be used to perform denial of service against any system which processes public keys, certificate requests or certificates. This includes TLS clients and TLS servers with client authentication enabled. This issue affects OpenSSL versions: 1.0.2 and 1.0.1. Recent 1.0.0 and 0.9.8 versions are not affected. 1.0.0d and 0.9.8r and below are affected. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n OpenSSL 1.0.0d (and below) users should upgrade to 1.0.0s OpenSSL 0.9.8r (and below) users should upgrade to 0.9.8zg This issue was reported to OpenSSL on 6th April 2015 by Joseph Birr-Pixton. The fix was developed by Andy Polyakov of the OpenSSL development team. Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789) =============================================================== Severity: Moderate 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. An attacker can use this to craft malformed certificates and CRLs of various sizes and potentially cause a segmentation fault, resulting in a DoS on applications that verify certificates or CRLs. TLS clients that verify CRLs are affected. TLS clients and servers with client authentication enabled may be affected if they use custom verification callbacks. This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n OpenSSL 1.0.0 users should upgrade to 1.0.0s OpenSSL 0.9.8 users should upgrade to 0.9.8zg This issue was reported to OpenSSL on 8th April 2015 by Robert Swiecki (Google), and independently on 11th April 2015 by Hanno Böck. The fix was developed by Emilia Käsper of the OpenSSL development team. PKCS7 crash with missing EnvelopedContent (CVE-2015-1790) ========================================================= Severity: Moderate The PKCS#7 parsing code does not handle missing inner EncryptedContent correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with missing content and trigger a NULL pointer dereference on parsing. Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 structures from untrusted sources are affected. OpenSSL clients and servers are not affected. This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n OpenSSL 1.0.0 users should upgrade to 1.0.0s OpenSSL 0.9.8 users should upgrade to 0.9.8zg This issue was reported to OpenSSL on 18th April 2015 by Michal Zalewski (Google). The fix was developed by Emilia Käsper of the OpenSSL development team. CMS verify infinite loop with unknown hash function (CVE-2015-1792) =================================================================== Severity: Moderate When verifying a signedData message the CMS code can enter an infinite loop if presented with an unknown hash function OID. This can be used to perform denial of service against any system which verifies signedData messages using the CMS code. This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n OpenSSL 1.0.0 users should upgrade to 1.0.0s OpenSSL 0.9.8 users should upgrade to 0.9.8zg This issue was reported to OpenSSL on 31st March 2015 by Johannes Bauer. The fix was developed by Dr. Stephen Henson of the OpenSSL development team. This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8. OpenSSL 1.0.2 users should upgrade to 1.0.2b OpenSSL 1.0.1 users should upgrade to 1.0.1n OpenSSL 1.0.0 users should upgrade to 1.0.0s OpenSSL 0.9.8 users should upgrade to 0.9.8zg This issue was discovered by Emilia Käsper of the OpenSSL development team. The fix was developed by Matt Caswell of the OpenSSL development team. Invalid free in DTLS (CVE-2014-8176) ==================================== Severity: Moderate This vulnerability does not affect current versions of OpenSSL. It existed in previous OpenSSL versions and was fixed in June 2014. If a DTLS peer receives application data between the ChangeCipherSpec and Finished messages, buffering of such data may cause an invalid free, resulting in a segmentation fault or potentially, memory corruption. This issue affected older OpenSSL versions 1.0.1, 1.0.0 and 0.9.8. OpenSSL 0.9.8 DTLS users should upgrade to 0.9.8za OpenSSL 1.0.0 DTLS users should upgrade to 1.0.0m. OpenSSL 1.0.1 DTLS users should upgrade to 1.0.1h. This issue was originally reported on March 28th 2014 in https://rt.openssl.org/Ticket/Display.html?id=3286 by Praveen Kariyanahalli, and subsequently by Ivan Fratric and Felix Groebert (Google). A fix was developed by zhu qun-ying. The fix for this issue can be identified by commits bcc31166 (1.0.1), b79e6e3a (1.0.0) and 4b258e73 (0.9.8). Note ==== As per our previous announcements and our Release Strategy (https://www.openssl.org/about/releasestrat.html), support for OpenSSL versions 1.0.0 and 0.9.8 will cease on 31st December 2015. No security updates for these releases will be provided after that date. Users of these releases are advised to upgrade. References ========== URL for this Security Advisory: https://www.openssl.org/news/secadv_20150611.txt Note: the online version of the advisory may be updated with additional details over time. For details of OpenSSL severity classifications please see: https://www.openssl.org/about/secpolicy.html . -----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_na-c04760669 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c04760669 Version: 1 HPSBUX03388 SSRT102180 rev.1 - HP-UX running OpenSSL, Remote Disclosure of Information NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2015-08-05 Last Updated: 2015-08-05 Potential Security Impact: Remote disclosure of information Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP-UX running OpenSSL with SSL/TLS enabled. References: CVE-2015-4000: DHE man-in-the-middle protection (Logjam). BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2015-4000 (AV:N/AC:M/Au:N/C:N/I:P/A:N) 4.3 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-2015-1790 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 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-2015-1793 (AV:N/AC:L/Au:N/C:P/I:P/A:N) 6.4 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION HP has provided an updated version of OpenSSL to resolve this vulnerability. A new B.11.31 depot for OpenSSL_A.01.00.01p is available here: https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber =OPENSSL11I MANUAL ACTIONS: Yes - Update PRODUCT SPECIFIC INFORMATION HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see: https://www.hp.com/go/swa The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX B.11.31 ================== openssl.OPENSSL-CER openssl.OPENSSL-CONF openssl.OPENSSL-DOC openssl.OPENSSL-INC openssl.OPENSSL-LIB openssl.OPENSSL-MAN openssl.OPENSSL-MIS openssl.OPENSSL-PRNG openssl.OPENSSL-PVT openssl.OPENSSL-RUN openssl.OPENSSL-SRC action: install revision A.01.00.01p or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) - 5 August 2015 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running HP 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 HP Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hp.com. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin Archive: A list of recently released Security Bulletins is available here: https://h20564.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/ 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 = HP General Software HF = HP Hardware and Firmware MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2015 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company 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 Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code. 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. ============================================================================ 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. [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. [CVE-2015-4000]. [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. [CVE-2015-1790]. [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-----

AFFECTED PRODUCTS