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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.0673 Moderate: lftp security update 3 August 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: lftp Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Overwrite Arbitrary Files -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2010-2251 Reference: ESB-2010.0449.2 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2010-0585.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: lftp security update Advisory ID: RHSA-2010:0585-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0585.html Issue date: 2010-08-02 CVE Names: CVE-2010-2251 ===================================================================== 1. Summary: An updated lftp package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: LFTP is a sophisticated file transfer program for the FTP and HTTP protocols. Like Bash, it has job control and uses the Readline library for input. It has bookmarks, built-in mirroring, and can transfer several files in parallel. It is designed with reliability in mind. It was discovered that lftp trusted the file name provided in the Content-Disposition HTTP header. A malicious HTTP server could use this flaw to write or overwrite files in the current working directory of a victim running lftp, by sending a different file from what the victim requested. (CVE-2010-2251) To correct this flaw, the following changes were made to lftp: the "xfer:clobber" option now defaults to "no", causing lftp to not overwrite existing files, and a new option, "xfer:auto-rename", which defaults to "no", has been introduced to control whether lftp should use server-suggested file names. Refer to the "Settings" section of the lftp(1) manual page for additional details on changing lftp settings. All lftp users should upgrade to this updated package, which contains a backported patch to correct this issue. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the 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/): 591580 - CVE-2010-2251 lftp: multiple HTTP client download filename vulnerability [OCERT 2010-001] 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/lftp-3.7.11-4.el5_5.3.src.rpm i386: lftp-3.7.11-4.el5_5.3.i386.rpm lftp-debuginfo-3.7.11-4.el5_5.3.i386.rpm x86_64: lftp-3.7.11-4.el5_5.3.x86_64.rpm lftp-debuginfo-3.7.11-4.el5_5.3.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/lftp-3.7.11-4.el5_5.3.src.rpm i386: lftp-3.7.11-4.el5_5.3.i386.rpm lftp-debuginfo-3.7.11-4.el5_5.3.i386.rpm ia64: lftp-3.7.11-4.el5_5.3.ia64.rpm lftp-debuginfo-3.7.11-4.el5_5.3.ia64.rpm ppc: lftp-3.7.11-4.el5_5.3.ppc.rpm lftp-debuginfo-3.7.11-4.el5_5.3.ppc.rpm s390x: lftp-3.7.11-4.el5_5.3.s390x.rpm lftp-debuginfo-3.7.11-4.el5_5.3.s390x.rpm x86_64: lftp-3.7.11-4.el5_5.3.x86_64.rpm lftp-debuginfo-3.7.11-4.el5_5.3.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: https://www.redhat.com/security/data/cve/CVE-2010-2251.html http://www.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2010 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFMVzDuXlSAg2UNWIIRAhrrAJwNjDY4mvdYFR1tP7FcuvBJ68bU/gCeMOMi QbmSJ86CpEbV+fV15w//KYU= =iQsF - -----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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://www.auscert.org.au/1967 iD8DBQFMV2tl/iFOrG6YcBERAhUsAKCqkLp4UGDyc/sxCi8x8NthBpmfaQCgv3b6 Gf8KzDETupoAGHRuEtKytZE= =KhcB -----END PGP SIGNATURE-----