Security update for libressl SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2018:2592-1 Final 1 1 2018-09-03T07:33:35Z current 2018-09-03T07:33:35Z 2018-09-03T07:33:35Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libressl This update for libressl to version 2.8.0 fixes the following issues: Security issues fixed: - CVE-2018-12434: Avoid a timing side-channel leak when generating DSA and ECDSA signatures. (boo#1097779) - Reject excessively large primes in DH key generation. Other bugs fixed: - Fixed a pair of 20+ year-old bugs in X509_NAME_add_entry. - Tighten up checks for various X509_VERIFY_PARAM functions, 'poisoning' parameters so that an unverified certificate cannot be used if it fails verification. - Fixed a potential memory leak on failure in ASN1_item_digest. - Fixed a potential memory alignment crash in asn1_item_combine_free. - Removed unused SSL3_FLAGS_DELAY_CLIENT_FINISHED and SSL3_FLAGS_POP_BUFFER flags in write path, simplifying IO paths. - Removed SSL_OP_TLS_ROLLBACK_BUG buggy client workarounds. - Added const annotations to many existing APIs from OpenSSL, making interoperability easier for downstream applications. - Added a missing bounds check in c2i_ASN1_BIT_STRING. - Removed three remaining single DES cipher suites. - Fixed a potential leak/incorrect return value in DSA signature generation. - Added a blinding value when generating DSA and ECDSA signatures, in order to reduce the possibility of a side-channel attack leaking the private key. - Added ECC constant time scalar multiplication support. - Revised the implementation of RSASSA-PKCS1-v1_5 to match the specification in RFC 8017. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) http://lists.opensuse.org/opensuse-security-announce/2018-09/msg00003.html E-Mail link for openSUSE-SU-2018:2592-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings openSUSE Leap 15.0 libcrypto43-2.8.0-lp150.2.3.1 libcrypto43-32bit-2.8.0-lp150.2.3.1 libressl-2.8.0-lp150.2.3.1 libressl-devel-2.8.0-lp150.2.3.1 libressl-devel-32bit-2.8.0-lp150.2.3.1 libressl-devel-doc-2.8.0-lp150.2.3.1 libssl45-2.8.0-lp150.2.3.1 libssl45-32bit-2.8.0-lp150.2.3.1 libtls17-2.8.0-lp150.2.3.1 libtls17-32bit-2.8.0-lp150.2.3.1 libcrypto43-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libcrypto43-32bit-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libressl-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libressl-devel-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libressl-devel-32bit-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libressl-devel-doc-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libssl45-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libssl45-32bit-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libtls17-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 libtls17-32bit-2.8.0-lp150.2.3.1 as a component of openSUSE Leap 15.0 LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. CVE-2018-12434 openSUSE Leap 15.0:libcrypto43-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libcrypto43-32bit-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libressl-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libressl-devel-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libressl-devel-32bit-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libressl-devel-doc-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libssl45-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libssl45-32bit-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libtls17-2.8.0-lp150.2.3.1 openSUSE Leap 15.0:libtls17-32bit-2.8.0-lp150.2.3.1 moderate Please Install the update. http://lists.opensuse.org/opensuse-security-announce/2018-09/msg00003.html https://www.suse.com/security/cve/CVE-2018-12434.html CVE-2018-12434 https://bugzilla.suse.com/1097779 SUSE Bug 1097779