-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: quagga security and bug fix update Advisory ID: RHSA-2017:0794-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0794.html Issue date: 2017-03-21 CVE Names: CVE-2013-2236 CVE-2016-1245 CVE-2016-2342 CVE-2016-4049 CVE-2017-5495 ===================================================================== 1. Summary: An update for quagga is now available for Red Hat Enterprise Linux 6. 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 Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: The quagga packages contain Quagga, the free network-routing software suite that manages TCP/IP based protocols. Quagga supports the BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng protocols, and is intended to be used as a Route Server and Route Reflector. Security Fix(es): * A stack-based buffer overflow flaw was found in the way Quagga handled IPv6 router advertisement messages. A remote attacker could use this flaw to crash the zebra daemon resulting in denial of service. (CVE-2016-1245) * A stack-based buffer overflow flaw was found in the way the Quagga BGP routing daemon (bgpd) handled Labeled-VPN SAFI routes data. A remote attacker could use this flaw to crash the bgpd daemon resulting in denial of service. (CVE-2016-2342) * A denial of service flaw was found in the Quagga BGP routing daemon (bgpd). Under certain circumstances, a remote attacker could send a crafted packet to crash the bgpd daemon resulting in denial of service. (CVE-2016-4049) * A denial of service flaw affecting various daemons in Quagga was found. A remote attacker could use this flaw to cause the various Quagga daemons, which expose their telnet interface, to crash. (CVE-2017-5495) * A stack-based buffer overflow flaw was found in the way the Quagga OSPFD daemon handled LSA (link-state advertisement) packets. A remote attacker could use this flaw to crash the ospfd daemon resulting in denial of service. (CVE-2013-2236) Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical 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 After installing the updated packages, the bgpd daemon must be restarted for the update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 674862 - Add missing man pages in quagga package 770731 - Interface prefix advertisement declaration prevents ospf6d from starting 839620 - /etc/sysconfig/quagga defines QCONFDIR, init scripts do not use it 842308 - quagga daemon pidfiles remain after daemons are stopped 862826 - Correct spec to add watchquagga 981124 - CVE-2013-2236 Quagga: OSPFD Potential remote code exec (stack based buffer overflow) 1316571 - CVE-2016-2342 quagga: VPNv4 NLRI parser memcpys to stack on unchecked length 1331372 - CVE-2016-4049 quagga: denial of service vulnerability in BGP routing daemon 1386109 - CVE-2016-1245 quagga: Buffer Overflow in IPv6 RA handling 1416013 - CVE-2017-5495 quagga: Telnet interface input buffer allocates unbounded amounts of memory 6. Package List: Red Hat Enterprise Linux Server (v. 6): Source: quagga-0.99.15-14.el6.src.rpm i386: quagga-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm ppc64: quagga-0.99.15-14.el6.ppc64.rpm quagga-debuginfo-0.99.15-14.el6.ppc64.rpm s390x: quagga-0.99.15-14.el6.s390x.rpm quagga-debuginfo-0.99.15-14.el6.s390x.rpm x86_64: quagga-0.99.15-14.el6.x86_64.rpm quagga-debuginfo-0.99.15-14.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: quagga-contrib-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm quagga-devel-0.99.15-14.el6.i686.rpm ppc64: quagga-contrib-0.99.15-14.el6.ppc64.rpm quagga-debuginfo-0.99.15-14.el6.ppc.rpm quagga-debuginfo-0.99.15-14.el6.ppc64.rpm quagga-devel-0.99.15-14.el6.ppc.rpm quagga-devel-0.99.15-14.el6.ppc64.rpm s390x: quagga-contrib-0.99.15-14.el6.s390x.rpm quagga-debuginfo-0.99.15-14.el6.s390.rpm quagga-debuginfo-0.99.15-14.el6.s390x.rpm quagga-devel-0.99.15-14.el6.s390.rpm quagga-devel-0.99.15-14.el6.s390x.rpm x86_64: quagga-contrib-0.99.15-14.el6.x86_64.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.x86_64.rpm quagga-devel-0.99.15-14.el6.i686.rpm quagga-devel-0.99.15-14.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: quagga-0.99.15-14.el6.src.rpm i386: quagga-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm x86_64: quagga-0.99.15-14.el6.x86_64.rpm quagga-debuginfo-0.99.15-14.el6.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: quagga-contrib-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm quagga-devel-0.99.15-14.el6.i686.rpm x86_64: quagga-contrib-0.99.15-14.el6.x86_64.rpm quagga-debuginfo-0.99.15-14.el6.i686.rpm quagga-debuginfo-0.99.15-14.el6.x86_64.rpm quagga-devel-0.99.15-14.el6.i686.rpm quagga-devel-0.99.15-14.el6.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-2013-2236 https://access.redhat.com/security/cve/CVE-2016-1245 https://access.redhat.com/security/cve/CVE-2016-2342 https://access.redhat.com/security/cve/CVE-2016-4049 https://access.redhat.com/security/cve/CVE-2017-5495 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFY0PZlXlSAg2UNWIIRAk04AJ9quLI5264pSVvfyo8UnOkIRLPkxgCePk5v hgFzQjA6W9PSi1maCzaBHug= =Wvx0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce