Test Kennung:	1.3.6.1.4.1.25623.1.0.852047
Kategorie:	SuSE Local Security Checks
Titel:	openSUSE: Security Advisory for libressl (openSUSE-SU-2018:2592-1)
Zusammenfassung:	The remote host is missing an update for the 'libressl'; package(s) announced via the openSUSE-SU-2018:2592-1 advisory.
Beschreibung:	Summary: The remote host is missing an update for the 'libressl' package(s) announced via the openSUSE-SU-2018:2592-1 advisory. Vulnerability Insight: 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. Patch Instructions: To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product: - openSUSE Leap 15.0: zypper in -t patch openSUSE-2018-950=1 Affected Software/OS: libressl on openSUSE Leap 15.0. Solution: Please install the updated package(s). CVSS Score: 1.9 CVSS Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2018-12434
Copyright	Copyright (C) 2018 Greenbone Networks GmbH

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