-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: gnutls security, bug fix, and enhancement update Advisory ID: RHSA-2017:2292-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2292 Issue date: 2017-08-01 CVE Names: CVE-2016-7444 CVE-2017-5334 CVE-2017-5335 CVE-2017-5336 CVE-2017-5337 CVE-2017-7507 CVE-2017-7869 ===================================================================== 1. Summary: An update for gnutls is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS. The following packages have been upgraded to a later upstream version: gnutls (3.3.26). (BZ#1378373) Security Fix(es): * A double-free flaw was found in the way GnuTLS parsed certain X.509 certificates with Proxy Certificate Information extension. An attacker could create a specially-crafted certificate which, when processed by an application compiled against GnuTLS, could cause that application to crash. (CVE-2017-5334) * Multiple flaws were found in the way gnutls processed OpenPGP certificates. An attacker could create specially crafted OpenPGP certificates which, when parsed by gnutls, would cause it to crash. (CVE-2017-5335, CVE-2017-5336, CVE-2017-5337, CVE-2017-7869) * A null pointer dereference flaw was found in the way GnuTLS processed ClientHello messages with status_request extension. A remote attacker could use this flaw to cause an application compiled with GnuTLS to crash. (CVE-2017-7507) * A flaw was found in the way GnuTLS validated certificates using OCSP responses. This could falsely report a certificate as valid under certain circumstances. (CVE-2016-7444) The CVE-2017-7507 issue was discovered by Hubert Kario (Red Hat QE BaseOS Security team). Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1335931 - gnutls: Disable TLS connections with less than 1024-bit DH parameters 1374266 - CVE-2016-7444 gnutls: Incorrect certificate validation when using OCSP responses (GNUTLS-SA-2016-3) 1375303 - gnutls trusts a certificate whose CA is both explicitly trusted and blacklisted 1375463 - doc update: certtool's manpage does not mention it cannot handle PKCS#11 URLs for certain options 1378373 - RFE: Add functions to set issuer and subject id in x509 certificates 1379283 - gnutls: Support the pin-value attribute in RFC7512 URLs 1379739 - gnutls: do not require trousers 1380642 - Cannot read encrypted PKCS#8 from OpenSSL 1383748 - GnuTLS parses only the first 32 extensions, ignoring the rest 1388932 - gnutls: interoperability issue 3.3.x vs. 3.5.5 1399232 - RFE: p11tool command misses the --id option 1411835 - CVE-2017-5334 gnutls: Double-free while decoding crafted X.509 certificates 1411836 - CVE-2017-5337 gnutls: Heap read overflow in read-packet.c 1412235 - CVE-2017-5335 gnutls: Out of memory while parsing crafted OpenPGP certificate 1412236 - CVE-2017-5336 gnutls: Stack overflow in cdk_pk_get_keyid 1443033 - CVE-2017-7869 gnutls: Out-of-bounds write related to the cdk_pkt_read function (GNUTLS-SA-2017-3) 1454621 - CVE-2017-7507 gnutls: Crash upon receiving well-formed status_request extension 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: gnutls-3.3.26-9.el7.src.rpm x86_64: gnutls-3.3.26-9.el7.i686.rpm gnutls-3.3.26-9.el7.x86_64.rpm gnutls-dane-3.3.26-9.el7.i686.rpm gnutls-dane-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-utils-3.3.26-9.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: gnutls-c++-3.3.26-9.el7.i686.rpm gnutls-c++-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-devel-3.3.26-9.el7.i686.rpm gnutls-devel-3.3.26-9.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: gnutls-3.3.26-9.el7.src.rpm x86_64: gnutls-3.3.26-9.el7.i686.rpm gnutls-3.3.26-9.el7.x86_64.rpm gnutls-dane-3.3.26-9.el7.i686.rpm gnutls-dane-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-utils-3.3.26-9.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: gnutls-c++-3.3.26-9.el7.i686.rpm gnutls-c++-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-devel-3.3.26-9.el7.i686.rpm gnutls-devel-3.3.26-9.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: gnutls-3.3.26-9.el7.src.rpm aarch64: gnutls-3.3.26-9.el7.aarch64.rpm gnutls-c++-3.3.26-9.el7.aarch64.rpm gnutls-dane-3.3.26-9.el7.aarch64.rpm gnutls-debuginfo-3.3.26-9.el7.aarch64.rpm gnutls-devel-3.3.26-9.el7.aarch64.rpm gnutls-utils-3.3.26-9.el7.aarch64.rpm ppc64: gnutls-3.3.26-9.el7.ppc.rpm gnutls-3.3.26-9.el7.ppc64.rpm gnutls-c++-3.3.26-9.el7.ppc.rpm gnutls-c++-3.3.26-9.el7.ppc64.rpm gnutls-dane-3.3.26-9.el7.ppc.rpm gnutls-dane-3.3.26-9.el7.ppc64.rpm gnutls-debuginfo-3.3.26-9.el7.ppc.rpm gnutls-debuginfo-3.3.26-9.el7.ppc64.rpm gnutls-devel-3.3.26-9.el7.ppc.rpm gnutls-devel-3.3.26-9.el7.ppc64.rpm gnutls-utils-3.3.26-9.el7.ppc64.rpm ppc64le: gnutls-3.3.26-9.el7.ppc64le.rpm gnutls-c++-3.3.26-9.el7.ppc64le.rpm gnutls-dane-3.3.26-9.el7.ppc64le.rpm gnutls-debuginfo-3.3.26-9.el7.ppc64le.rpm gnutls-devel-3.3.26-9.el7.ppc64le.rpm gnutls-utils-3.3.26-9.el7.ppc64le.rpm s390x: gnutls-3.3.26-9.el7.s390.rpm gnutls-3.3.26-9.el7.s390x.rpm gnutls-c++-3.3.26-9.el7.s390.rpm gnutls-c++-3.3.26-9.el7.s390x.rpm gnutls-dane-3.3.26-9.el7.s390.rpm gnutls-dane-3.3.26-9.el7.s390x.rpm gnutls-debuginfo-3.3.26-9.el7.s390.rpm gnutls-debuginfo-3.3.26-9.el7.s390x.rpm gnutls-devel-3.3.26-9.el7.s390.rpm gnutls-devel-3.3.26-9.el7.s390x.rpm gnutls-utils-3.3.26-9.el7.s390x.rpm x86_64: gnutls-3.3.26-9.el7.i686.rpm gnutls-3.3.26-9.el7.x86_64.rpm gnutls-c++-3.3.26-9.el7.i686.rpm gnutls-c++-3.3.26-9.el7.x86_64.rpm gnutls-dane-3.3.26-9.el7.i686.rpm gnutls-dane-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-devel-3.3.26-9.el7.i686.rpm gnutls-devel-3.3.26-9.el7.x86_64.rpm gnutls-utils-3.3.26-9.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: gnutls-3.3.26-9.el7.src.rpm x86_64: gnutls-3.3.26-9.el7.i686.rpm gnutls-3.3.26-9.el7.x86_64.rpm gnutls-c++-3.3.26-9.el7.i686.rpm gnutls-c++-3.3.26-9.el7.x86_64.rpm gnutls-dane-3.3.26-9.el7.i686.rpm gnutls-dane-3.3.26-9.el7.x86_64.rpm gnutls-debuginfo-3.3.26-9.el7.i686.rpm gnutls-debuginfo-3.3.26-9.el7.x86_64.rpm gnutls-devel-3.3.26-9.el7.i686.rpm gnutls-devel-3.3.26-9.el7.x86_64.rpm gnutls-utils-3.3.26-9.el7.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-2016-7444 https://access.redhat.com/security/cve/CVE-2017-5334 https://access.redhat.com/security/cve/CVE-2017-5335 https://access.redhat.com/security/cve/CVE-2017-5336 https://access.redhat.com/security/cve/CVE-2017-5337 https://access.redhat.com/security/cve/CVE-2017-7507 https://access.redhat.com/security/cve/CVE-2017-7869 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html 8. Contact: The Red Hat security contact is . 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