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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1119 Important: openssl security update 10 May 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssl Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2842 CVE-2016-2109 CVE-2016-2108 CVE-2016-2107 CVE-2016-2106 CVE-2016-2105 CVE-2016-0799 Reference: ASB-2016.0042 ASB-2016.0019 ESB-2016.0560 ESB-2016.0547 ESB-2016.0543.2 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-0722.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: openssl security update Advisory ID: RHSA-2016:0722-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0722.html Issue date: 2016-05-09 CVE Names: CVE-2016-0799 CVE-2016-2105 CVE-2016-2106 CVE-2016-2107 CVE-2016-2108 CVE-2016-2109 CVE-2016-2842 ===================================================================== 1. Summary: An update for openssl is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): * A flaw was found in the way OpenSSL encoded certain ASN.1 data structures. An attacker could use this flaw to create a specially crafted certificate which, when verified or re-encoded by OpenSSL, could cause it to crash, or execute arbitrary code using the permissions of the user running an application compiled against the OpenSSL library. (CVE-2016-2108) * Two integer overflow flaws, leading to buffer overflows, were found in the way the EVP_EncodeUpdate() and EVP_EncryptUpdate() functions of OpenSSL parsed very large amounts of input data. A remote attacker could use these flaws to crash an application using OpenSSL or, possibly, execute arbitrary code with the permissions of the user running that application. (CVE-2016-2105, CVE-2016-2106) * It was discovered that OpenSSL leaked timing information when decrypting TLS/SSL and DTLS protocol encrypted records when the connection used the AES CBC cipher suite and the server supported AES-NI. A remote attacker could possibly use this flaw to retrieve plain text from encrypted packets by using a TLS/SSL or DTLS server as a padding oracle. (CVE-2016-2107) * Several flaws were found in the way BIO_*printf functions were implemented in OpenSSL. Applications which passed large amounts of untrusted data through these functions could crash or potentially execute code with the permissions of the user running such an application. (CVE-2016-0799, CVE-2016-2842) * A denial of service flaw was found in the way OpenSSL parsed certain ASN.1-encoded data from BIO (OpenSSL's I/O abstraction) inputs. An application using OpenSSL that accepts untrusted ASN.1 BIO input could be forced to allocate an excessive amount of data. (CVE-2016-2109) Red Hat would like to thank the OpenSSL project for reporting CVE-2016-2108, CVE-2016-2842, CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, and CVE-2016-0799. Upstream acknowledges Huzaifa Sidhpurwala (Red Hat), Hanno Böck, and David Benjamin (Google) as the original reporters of CVE-2016-2108; Guido Vranken as the original reporter of CVE-2016-2842, CVE-2016-2105, CVE-2016-2106, and CVE-2016-0799; and Juraj Somorovsky as the original reporter of CVE-2016-2107. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted. 5. Bugs fixed (https://bugzilla.redhat.com/): 1312219 - CVE-2016-0799 OpenSSL: Fix memory issues in BIO_*printf functions 1314757 - CVE-2016-2842 openssl: doapr_outch function does not verify that certain memory allocation succeeds 1330101 - CVE-2016-2109 openssl: ASN.1 BIO handling of large amounts of data 1331402 - CVE-2016-2108 openssl: Memory corruption in the ASN.1 encoder 1331426 - CVE-2016-2107 openssl: Padding oracle in AES-NI CBC MAC check 1331441 - CVE-2016-2105 openssl: EVP_EncodeUpdate overflow 1331536 - CVE-2016-2106 openssl: EVP_EncryptUpdate overflow 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: openssl-1.0.1e-51.el7_2.5.src.rpm x86_64: openssl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-libs-1.0.1e-51.el7_2.5.i686.rpm openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-devel-1.0.1e-51.el7_2.5.i686.rpm openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-static-1.0.1e-51.el7_2.5.i686.rpm openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: openssl-1.0.1e-51.el7_2.5.src.rpm x86_64: openssl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-libs-1.0.1e-51.el7_2.5.i686.rpm openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-devel-1.0.1e-51.el7_2.5.i686.rpm openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-static-1.0.1e-51.el7_2.5.i686.rpm openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: openssl-1.0.1e-51.el7_2.5.src.rpm ppc64: openssl-1.0.1e-51.el7_2.5.ppc64.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.ppc.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.ppc64.rpm openssl-devel-1.0.1e-51.el7_2.5.ppc.rpm openssl-devel-1.0.1e-51.el7_2.5.ppc64.rpm openssl-libs-1.0.1e-51.el7_2.5.ppc.rpm openssl-libs-1.0.1e-51.el7_2.5.ppc64.rpm ppc64le: openssl-1.0.1e-51.el7_2.5.ppc64le.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.ppc64le.rpm openssl-devel-1.0.1e-51.el7_2.5.ppc64le.rpm openssl-libs-1.0.1e-51.el7_2.5.ppc64le.rpm s390x: openssl-1.0.1e-51.el7_2.5.s390x.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.s390.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.s390x.rpm openssl-devel-1.0.1e-51.el7_2.5.s390.rpm openssl-devel-1.0.1e-51.el7_2.5.s390x.rpm openssl-libs-1.0.1e-51.el7_2.5.s390.rpm openssl-libs-1.0.1e-51.el7_2.5.s390x.rpm x86_64: openssl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-devel-1.0.1e-51.el7_2.5.i686.rpm openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm openssl-libs-1.0.1e-51.el7_2.5.i686.rpm openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: openssl-debuginfo-1.0.1e-51.el7_2.5.ppc.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.ppc64.rpm openssl-perl-1.0.1e-51.el7_2.5.ppc64.rpm openssl-static-1.0.1e-51.el7_2.5.ppc.rpm openssl-static-1.0.1e-51.el7_2.5.ppc64.rpm ppc64le: openssl-debuginfo-1.0.1e-51.el7_2.5.ppc64le.rpm openssl-perl-1.0.1e-51.el7_2.5.ppc64le.rpm openssl-static-1.0.1e-51.el7_2.5.ppc64le.rpm s390x: openssl-debuginfo-1.0.1e-51.el7_2.5.s390.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.s390x.rpm openssl-perl-1.0.1e-51.el7_2.5.s390x.rpm openssl-static-1.0.1e-51.el7_2.5.s390.rpm openssl-static-1.0.1e-51.el7_2.5.s390x.rpm x86_64: openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-static-1.0.1e-51.el7_2.5.i686.rpm openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: openssl-1.0.1e-51.el7_2.5.src.rpm x86_64: openssl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-devel-1.0.1e-51.el7_2.5.i686.rpm openssl-devel-1.0.1e-51.el7_2.5.x86_64.rpm openssl-libs-1.0.1e-51.el7_2.5.i686.rpm openssl-libs-1.0.1e-51.el7_2.5.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: openssl-debuginfo-1.0.1e-51.el7_2.5.i686.rpm openssl-debuginfo-1.0.1e-51.el7_2.5.x86_64.rpm openssl-perl-1.0.1e-51.el7_2.5.x86_64.rpm openssl-static-1.0.1e-51.el7_2.5.i686.rpm openssl-static-1.0.1e-51.el7_2.5.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2016-0799 https://access.redhat.com/security/cve/CVE-2016-2105 https://access.redhat.com/security/cve/CVE-2016-2106 https://access.redhat.com/security/cve/CVE-2016-2107 https://access.redhat.com/security/cve/CVE-2016-2108 https://access.redhat.com/security/cve/CVE-2016-2109 https://access.redhat.com/security/cve/CVE-2016-2842 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFXMFlTXlSAg2UNWIIRAhYAAJ0T9Ib2vXUa5te34i6fphHrbe0HlwCfePy5 WjaK8x9OaI0FgbWyfxvwq6o= =jHjh - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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