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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0822 -- [RedHat] Critical: openssh security update 25 August 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssh Publisher: Red Hat Operating System: Red Hat Enterprise Linux Impact: Provide Misleading Information Inappropriate Access Access: Remote/Unauthenticated CVE Names: CVE-2007-4752 Ref: AA-2007.0074 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0855.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Critical: openssh security update Advisory ID: RHSA-2008:0855-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0855.html Issue date: 2008-08-22 CVE Names: CVE-2007-4752 ===================================================================== 1. Summary: Updated openssh packages are now available for Red Hat Enterprise Linux 4, Red Hat Enterprise Linux 5, and Red Hat Enterprise Linux 4.5 Extended Update Support. This update has been rated as having critical 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 AS version 4.5.z - 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 ES version 4.5.z - 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: OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. Last week Red Hat detected an intrusion on certain of its computer systems and took immediate action. While the investigation into the intrusion is on-going, our initial focus was to review and test the distribution channel we use with our customers, Red Hat Network (RHN) and its associated security measures. Based on these efforts, we remain highly confident that our systems and processes prevented the intrusion from compromising RHN or the content distributed via RHN and accordingly believe that customers who keep their systems updated using Red Hat Network are not at risk. We are issuing this alert primarily for those who may obtain Red Hat binary packages via channels other than those of official Red Hat subscribers. In connection with the incident, the intruder was able to sign a small number of OpenSSH packages relating only to Red Hat Enterprise Linux 4 (i386 and x86_64 architectures only) and Red Hat Enterprise Linux 5 (x86_64 architecture only). As a precautionary measure, we are releasing an updated version of these packages, and have published a list of the tampered packages and how to detect them at http://www.redhat.com/security/data/openssh-blacklist.html To reiterate, our processes and efforts to date indicate that packages obtained by Red Hat Enterprise Linux subscribers via Red Hat Network are not at risk. These packages also fix a low severity flaw in the way ssh handles X11 cookies when creating X11 forwarding connections. When ssh was unable to create untrusted cookie, ssh used a trusted cookie instead, possibly allowing the administrative user of a untrusted remote server, or untrusted application run on the remote server, to gain unintended access to a users local X server. (CVE-2007-4752) 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/FAQ_58_10188 5. Bugs fixed (http://bugzilla.redhat.com/): 280361 - CVE-2007-4752 openssh falls back to the trusted x11 cookie if generation of an untrusted cookie fails 6. Package List: Red Hat Enterprise Linux AS version 4: Source: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/openssh-3.9p1-11.el4_7.src.rpm i386: openssh-3.9p1-11.el4_7.i386.rpm openssh-askpass-3.9p1-11.el4_7.i386.rpm openssh-askpass-gnome-3.9p1-11.el4_7.i386.rpm openssh-clients-3.9p1-11.el4_7.i386.rpm openssh-debuginfo-3.9p1-11.el4_7.i386.rpm openssh-server-3.9p1-11.el4_7.i386.rpm ia64: openssh-3.9p1-11.el4_7.ia64.rpm openssh-askpass-3.9p1-11.el4_7.ia64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.ia64.rpm openssh-clients-3.9p1-11.el4_7.ia64.rpm openssh-debuginfo-3.9p1-11.el4_7.ia64.rpm openssh-server-3.9p1-11.el4_7.ia64.rpm ppc: openssh-3.9p1-11.el4_7.ppc.rpm openssh-askpass-3.9p1-11.el4_7.ppc.rpm openssh-askpass-gnome-3.9p1-11.el4_7.ppc.rpm openssh-clients-3.9p1-11.el4_7.ppc.rpm openssh-debuginfo-3.9p1-11.el4_7.ppc.rpm openssh-server-3.9p1-11.el4_7.ppc.rpm s390: openssh-3.9p1-11.el4_7.s390.rpm openssh-askpass-3.9p1-11.el4_7.s390.rpm openssh-askpass-gnome-3.9p1-11.el4_7.s390.rpm openssh-clients-3.9p1-11.el4_7.s390.rpm openssh-debuginfo-3.9p1-11.el4_7.s390.rpm openssh-server-3.9p1-11.el4_7.s390.rpm s390x: openssh-3.9p1-11.el4_7.s390x.rpm openssh-askpass-3.9p1-11.el4_7.s390x.rpm openssh-askpass-gnome-3.9p1-11.el4_7.s390x.rpm openssh-clients-3.9p1-11.el4_7.s390x.rpm openssh-debuginfo-3.9p1-11.el4_7.s390x.rpm openssh-server-3.9p1-11.el4_7.s390x.rpm x86_64: openssh-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.x86_64.rpm openssh-clients-3.9p1-11.el4_7.x86_64.rpm openssh-debuginfo-3.9p1-11.el4_7.x86_64.rpm openssh-server-3.9p1-11.el4_7.x86_64.rpm Red Hat Enterprise Linux AS version 4.5.z: Source: ftp://updates.redhat.com/enterprise/4AS-4.5.z/en/os/SRPMS/openssh-3.9p1-10.RHEL4.20.src.rpm i386: openssh-3.9p1-10.RHEL4.20.i386.rpm openssh-askpass-3.9p1-10.RHEL4.20.i386.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.i386.rpm openssh-clients-3.9p1-10.RHEL4.20.i386.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.i386.rpm openssh-server-3.9p1-10.RHEL4.20.i386.rpm ia64: openssh-3.9p1-10.RHEL4.20.ia64.rpm openssh-askpass-3.9p1-10.RHEL4.20.ia64.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.ia64.rpm openssh-clients-3.9p1-10.RHEL4.20.ia64.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.ia64.rpm openssh-server-3.9p1-10.RHEL4.20.ia64.rpm ppc: openssh-3.9p1-10.RHEL4.20.ppc.rpm openssh-askpass-3.9p1-10.RHEL4.20.ppc.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.ppc.rpm openssh-clients-3.9p1-10.RHEL4.20.ppc.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.ppc.rpm openssh-server-3.9p1-10.RHEL4.20.ppc.rpm s390: openssh-3.9p1-10.RHEL4.20.s390x.rpm openssh-askpass-3.9p1-10.RHEL4.20.s390x.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.s390x.rpm openssh-clients-3.9p1-10.RHEL4.20.s390x.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.s390x.rpm openssh-server-3.9p1-10.RHEL4.20.s390x.rpm s390x: openssh-3.9p1-10.RHEL4.20.s390x.rpm openssh-askpass-3.9p1-10.RHEL4.20.s390x.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.s390x.rpm openssh-clients-3.9p1-10.RHEL4.20.s390x.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.s390x.rpm openssh-server-3.9p1-10.RHEL4.20.s390x.rpm x86_64: openssh-3.9p1-10.RHEL4.20.x86_64.rpm openssh-askpass-3.9p1-10.RHEL4.20.x86_64.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.x86_64.rpm openssh-clients-3.9p1-10.RHEL4.20.x86_64.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.x86_64.rpm openssh-server-3.9p1-10.RHEL4.20.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: Source: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/openssh-3.9p1-11.el4_7.src.rpm i386: openssh-3.9p1-11.el4_7.i386.rpm openssh-askpass-3.9p1-11.el4_7.i386.rpm openssh-askpass-gnome-3.9p1-11.el4_7.i386.rpm openssh-clients-3.9p1-11.el4_7.i386.rpm openssh-debuginfo-3.9p1-11.el4_7.i386.rpm openssh-server-3.9p1-11.el4_7.i386.rpm x86_64: openssh-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.x86_64.rpm openssh-clients-3.9p1-11.el4_7.x86_64.rpm openssh-debuginfo-3.9p1-11.el4_7.x86_64.rpm openssh-server-3.9p1-11.el4_7.x86_64.rpm Red Hat Enterprise Linux ES version 4: Source: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/openssh-3.9p1-11.el4_7.src.rpm i386: openssh-3.9p1-11.el4_7.i386.rpm openssh-askpass-3.9p1-11.el4_7.i386.rpm openssh-askpass-gnome-3.9p1-11.el4_7.i386.rpm openssh-clients-3.9p1-11.el4_7.i386.rpm openssh-debuginfo-3.9p1-11.el4_7.i386.rpm openssh-server-3.9p1-11.el4_7.i386.rpm ia64: openssh-3.9p1-11.el4_7.ia64.rpm openssh-askpass-3.9p1-11.el4_7.ia64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.ia64.rpm openssh-clients-3.9p1-11.el4_7.ia64.rpm openssh-debuginfo-3.9p1-11.el4_7.ia64.rpm openssh-server-3.9p1-11.el4_7.ia64.rpm x86_64: openssh-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.x86_64.rpm openssh-clients-3.9p1-11.el4_7.x86_64.rpm openssh-debuginfo-3.9p1-11.el4_7.x86_64.rpm openssh-server-3.9p1-11.el4_7.x86_64.rpm Red Hat Enterprise Linux ES version 4.5.z: Source: ftp://updates.redhat.com/enterprise/4ES-4.5.z/en/os/SRPMS/openssh-3.9p1-10.RHEL4.20.src.rpm i386: openssh-3.9p1-10.RHEL4.20.i386.rpm openssh-askpass-3.9p1-10.RHEL4.20.i386.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.i386.rpm openssh-clients-3.9p1-10.RHEL4.20.i386.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.i386.rpm openssh-server-3.9p1-10.RHEL4.20.i386.rpm ia64: openssh-3.9p1-10.RHEL4.20.ia64.rpm openssh-askpass-3.9p1-10.RHEL4.20.ia64.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.ia64.rpm openssh-clients-3.9p1-10.RHEL4.20.ia64.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.ia64.rpm openssh-server-3.9p1-10.RHEL4.20.ia64.rpm x86_64: openssh-3.9p1-10.RHEL4.20.x86_64.rpm openssh-askpass-3.9p1-10.RHEL4.20.x86_64.rpm openssh-askpass-gnome-3.9p1-10.RHEL4.20.x86_64.rpm openssh-clients-3.9p1-10.RHEL4.20.x86_64.rpm openssh-debuginfo-3.9p1-10.RHEL4.20.x86_64.rpm openssh-server-3.9p1-10.RHEL4.20.x86_64.rpm Red Hat Enterprise Linux WS version 4: Source: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/openssh-3.9p1-11.el4_7.src.rpm i386: openssh-3.9p1-11.el4_7.i386.rpm openssh-askpass-3.9p1-11.el4_7.i386.rpm openssh-askpass-gnome-3.9p1-11.el4_7.i386.rpm openssh-clients-3.9p1-11.el4_7.i386.rpm openssh-debuginfo-3.9p1-11.el4_7.i386.rpm openssh-server-3.9p1-11.el4_7.i386.rpm ia64: openssh-3.9p1-11.el4_7.ia64.rpm openssh-askpass-3.9p1-11.el4_7.ia64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.ia64.rpm openssh-clients-3.9p1-11.el4_7.ia64.rpm openssh-debuginfo-3.9p1-11.el4_7.ia64.rpm openssh-server-3.9p1-11.el4_7.ia64.rpm x86_64: openssh-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-3.9p1-11.el4_7.x86_64.rpm openssh-askpass-gnome-3.9p1-11.el4_7.x86_64.rpm openssh-clients-3.9p1-11.el4_7.x86_64.rpm openssh-debuginfo-3.9p1-11.el4_7.x86_64.rpm openssh-server-3.9p1-11.el4_7.x86_64.rpm Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openssh-4.3p2-26.el5_2.1.src.rpm i386: openssh-4.3p2-26.el5_2.1.i386.rpm openssh-askpass-4.3p2-26.el5_2.1.i386.rpm openssh-clients-4.3p2-26.el5_2.1.i386.rpm openssh-debuginfo-4.3p2-26.el5_2.1.i386.rpm openssh-server-4.3p2-26.el5_2.1.i386.rpm x86_64: openssh-4.3p2-26.el5_2.1.x86_64.rpm openssh-askpass-4.3p2-26.el5_2.1.x86_64.rpm openssh-clients-4.3p2-26.el5_2.1.x86_64.rpm openssh-debuginfo-4.3p2-26.el5_2.1.x86_64.rpm openssh-server-4.3p2-26.el5_2.1.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/openssh-4.3p2-26.el5_2.1.src.rpm i386: openssh-4.3p2-26.el5_2.1.i386.rpm openssh-askpass-4.3p2-26.el5_2.1.i386.rpm openssh-clients-4.3p2-26.el5_2.1.i386.rpm openssh-debuginfo-4.3p2-26.el5_2.1.i386.rpm openssh-server-4.3p2-26.el5_2.1.i386.rpm ia64: openssh-4.3p2-26.el5_2.1.ia64.rpm openssh-askpass-4.3p2-26.el5_2.1.ia64.rpm openssh-clients-4.3p2-26.el5_2.1.ia64.rpm openssh-debuginfo-4.3p2-26.el5_2.1.ia64.rpm openssh-server-4.3p2-26.el5_2.1.ia64.rpm ppc: openssh-4.3p2-26.el5_2.1.ppc.rpm openssh-askpass-4.3p2-26.el5_2.1.ppc.rpm openssh-clients-4.3p2-26.el5_2.1.ppc.rpm openssh-debuginfo-4.3p2-26.el5_2.1.ppc.rpm openssh-server-4.3p2-26.el5_2.1.ppc.rpm s390x: openssh-4.3p2-26.el5_2.1.s390x.rpm openssh-askpass-4.3p2-26.el5_2.1.s390x.rpm openssh-clients-4.3p2-26.el5_2.1.s390x.rpm openssh-debuginfo-4.3p2-26.el5_2.1.s390x.rpm openssh-server-4.3p2-26.el5_2.1.s390x.rpm x86_64: openssh-4.3p2-26.el5_2.1.x86_64.rpm openssh-askpass-4.3p2-26.el5_2.1.x86_64.rpm openssh-clients-4.3p2-26.el5_2.1.x86_64.rpm openssh-debuginfo-4.3p2-26.el5_2.1.x86_64.rpm openssh-server-4.3p2-26.el5_2.1.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-2007-4752 http://www.redhat.com/security/data/openssh-blacklist.html http://www.redhat.com/security/updates/classification/#critical 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2008 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFIrq3zXlSAg2UNWIIRAgcPAJwNb6Y/Z/tvgWN37Yi0+44DDXGY2ACeMs33 ugQUQ4k+fg60FO59N2ZuDOY= =2Am+ - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSLHxaCh9+71yA2DNAQIkMAP/ZTCDTyVuegPTNdIkecQBd/AHxrfRp1Vv +ELBI0zO10MyDJpX7U62451s3eiTIMaqgokSQ9jH4b/VFP8yeUxwAdMzXKWSJWtr qzvDNGu7jsShssKQUqa6PEng4f9vT5A4mJJQFjTrrk8bJ/3Z+ioyyzAZFNO/6wSH ZJi3rT+ewAs= =Qkkk -----END PGP SIGNATURE-----