news 28 Posted January 29, 2009 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: ntp security update Advisory ID: RHSA-2009:0046-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-0046.html Issue date: 2009-01-29 CVE Names: CVE-2009-0021 ===================================================================== 1. Summary: Updated ntp packages to correct a security issue are now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 3. Description: The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source. A flaw was discovered in the way the ntpd daemon checked the return value of the OpenSSL EVP_VerifyFinal function. On systems using NTPv4 authentication, this could lead to an incorrect verification of cryptographic signatures, allowing time-spoofing attacks. (CVE-2009-0021) Note: This issue only affects systems that have enabled NTP authentication. By default, NTP authentication is not enabled. All ntp users are advised to upgrade to the updated packages, which contain a backported patch to resolve this issue. After installing the update, the ntpd daemon will restart automatically. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 476807 - CVE-2009-0021 ntp incorrectly checks for malformed signatures 6. Package List: Red Hat Enterprise Linux AS version 4: Source: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/ntp-4.2.0.a.20040617-8.el4_7.1.src.rpm i386: ntp-4.2.0.a.20040617-8.el4_7.1.i386.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.i386.rpm ia64: ntp-4.2.0.a.20040617-8.el4_7.1.ia64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.ia64.rpm ppc: ntp-4.2.0.a.20040617-8.el4_7.1.ppc.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.ppc.rpm s390: ntp-4.2.0.a.20040617-8.el4_7.1.s390.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.s390.rpm s390x: ntp-4.2.0.a.20040617-8.el4_7.1.s390x.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.s390x.rpm x86_64: ntp-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: Source: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/ntp-4.2.0.a.20040617-8.el4_7.1.src.rpm i386: ntp-4.2.0.a.20040617-8.el4_7.1.i386.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.i386.rpm x86_64: ntp-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm Red Hat Enterprise Linux ES version 4: Source: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/ntp-4.2.0.a.20040617-8.el4_7.1.src.rpm i386: ntp-4.2.0.a.20040617-8.el4_7.1.i386.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.i386.rpm ia64: ntp-4.2.0.a.20040617-8.el4_7.1.ia64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.ia64.rpm x86_64: ntp-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm Red Hat Enterprise Linux WS version 4: Source: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/ntp-4.2.0.a.20040617-8.el4_7.1.src.rpm i386: ntp-4.2.0.a.20040617-8.el4_7.1.i386.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.i386.rpm ia64: ntp-4.2.0.a.20040617-8.el4_7.1.ia64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.ia64.rpm x86_64: ntp-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm ntp-debuginfo-4.2.0.a.20040617-8.el4_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/ntp-4.2.2p1-9.el5_3.1.src.rpm i386: ntp-4.2.2p1-9.el5_3.1.i386.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.i386.rpm x86_64: ntp-4.2.2p1-9.el5_3.1.x86_64.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/ntp-4.2.2p1-9.el5_3.1.src.rpm i386: ntp-4.2.2p1-9.el5_3.1.i386.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.i386.rpm ia64: ntp-4.2.2p1-9.el5_3.1.ia64.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.ia64.rpm ppc: ntp-4.2.2p1-9.el5_3.1.ppc.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.ppc.rpm s390x: ntp-4.2.2p1-9.el5_3.1.s390x.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.s390x.rpm x86_64: ntp-4.2.2p1-9.el5_3.1.x86_64.rpm ntp-debuginfo-4.2.2p1-9.el5_3.1.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://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0021 http://www.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://www.redhat.com/security/team/contact/ Copyright 2009 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFJgXumXlSAg2UNWIIRAtr1AJ94UAhnyto2JyiVTP/MVr2s8naqngCdEcid 2gortoMBGP2wrCbIv79epJY= =dCyt -----END PGP SIGNATURE----- -- Share this post Link to post
