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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0552 -- RHSA-2004:323-01 An updated lha package fixes security vulnerability 2 September 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: lha Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS/ES/WS 3 Red Hat Desktop version 3 Impact: Execute Arbitrary Code/Commands Access: Existing Account CVE Names: CAN-2004-0769 CAN-2004-0771 CAN-2004-0694 CAN-2004-0745 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: An updated lha package fixes security vulnerability Advisory ID: RHSA-2004:323-01 Issue date: 2004-09-01 Updated on: 2004-09-01 Product: Red Hat Enterprise Linux Obsoletes: RHSA-2004:178 CVE Names: CAN-2004-0769 CAN-2004-0771 CAN-2004-0694 CAN-2004-0745 - - --------------------------------------------------------------------- 1. Summary: An updated lha package that fixes a buffer overflow is now available. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 3. Problem description: LHA is an archiving and compression utility for LHarc format archives. Lukasz Wojtow discovered a stack-based buffer overflow in all versions of lha up to and including version 1.14. A carefully created archive could allow an attacker to execute arbitrary code when a victim extracts or tests the archive. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0769 to this issue. Buffer overflows were discovered in the command line processing of all versions of lha up to and including version 1.14. If a malicious user could trick a victim into passing a specially crafted command line to the lha command, it is possible that arbitrary code could be executed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0771 and CAN-2004-0694 to these issues. Thomas Biege discovered a shell meta character command execution vulnerability in all versions of lha up to and including 1.14. An attacker could create a directory with shell meta characters in its name which could lead to arbitrary command execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0745 to this issue. Users of lha should update to this updated package which contains backported patches and is not vulnerable to these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command: up2date For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system: http://www.redhat.com/docs/manuals/enterprise/ 5. Bug IDs fixed (http://bugzilla.redhat.com/ for more info): 126740 - Buffer overflow in lha 6. RPMs required: Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/lha-1.14i-10.4.src.rpm 494aaceeb0afa3c661c6eb0981af1fd2 lha-1.14i-10.4.src.rpm i386: 1d4d09649c91c742be78422fa746d93a lha-1.14i-10.4.i386.rpm ia64: 3d6b75954662f94459e0025599a4b7b8 lha-1.14i-10.4.ia64.rpm ppc: 63a3f6ee8c97484d8c0f95423adcb74f lha-1.14i-10.4.ppc.rpm s390: 41c9148155410c09c6898cd971a873f8 lha-1.14i-10.4.s390.rpm s390x: 2a2cd9f9ece25a0d885fb5079c608d6f lha-1.14i-10.4.s390x.rpm x86_64: 36bb4dbf784b15b7355548582f42a009 lha-1.14i-10.4.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/lha-1.14i-10.4.src.rpm 494aaceeb0afa3c661c6eb0981af1fd2 lha-1.14i-10.4.src.rpm i386: 1d4d09649c91c742be78422fa746d93a lha-1.14i-10.4.i386.rpm x86_64: 36bb4dbf784b15b7355548582f42a009 lha-1.14i-10.4.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/lha-1.14i-10.4.src.rpm 494aaceeb0afa3c661c6eb0981af1fd2 lha-1.14i-10.4.src.rpm i386: 1d4d09649c91c742be78422fa746d93a lha-1.14i-10.4.i386.rpm ia64: 3d6b75954662f94459e0025599a4b7b8 lha-1.14i-10.4.ia64.rpm x86_64: 36bb4dbf784b15b7355548582f42a009 lha-1.14i-10.4.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/lha-1.14i-10.4.src.rpm 494aaceeb0afa3c661c6eb0981af1fd2 lha-1.14i-10.4.src.rpm i386: 1d4d09649c91c742be78422fa746d93a lha-1.14i-10.4.i386.rpm ia64: 3d6b75954662f94459e0025599a4b7b8 lha-1.14i-10.4.ia64.rpm x86_64: 36bb4dbf784b15b7355548582f42a009 lha-1.14i-10.4.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.html#package 7. References: http://marc.theaimsgroup.com/?l=bugtraq&m=108668791510153 http://lw.ftw.zamosc.pl/lha-exploit.txt http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0769 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0771 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0694 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0745 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact.html Copyright 2004 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQFBNjBDXlSAg2UNWIIRAv0OAKCvKE3Q3z16A9ZkAZkj65yC4KuPLQCdHXZd cVZ7N+eXuSnX1tlcB1agJac= =LBeY - -----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. 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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 iQCVAwUBQTZRvSh9+71yA2DNAQIYBgP+OJ0XIXxLWe9HBenH0TRYutF3XEIuWm/q NrZ7U3ZRzTNzck5WPX9Bn0j37ViF1I4GKJelPapauCroOuS47YpDTpPIKJdBrA+x hcySWPfPQYVLfa5CA/UiAKx7XF4B0rsK5vVrcRMMMSek3/TtJWdNtHDkEOHNkZtS TOyJFcRLzgA= =yjrr -----END PGP SIGNATURE-----