Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0087 -- RHSA-2004:035-01 Updated mc packages resolve buffer overflow vulnerability 04 February 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mc (Midnight Commander) Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS 2.1 Red Hat Linux AW 2.1 Red Hat Enterprise Linux WS 2.1 Platform: IA-64 IA-32 Impact: Execute Arbitrary Code/Commands Access Required: Remote CVE Names: CAN-2003-1023 Ref: ESB-2004.0062 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated mc packages resolve buffer overflow vulnerability Advisory ID: RHSA-2004:035-01 Issue date: 2004-01-19 Updated on: 0000-04-01 Product: Red Hat Enterprise Linux Keywords: mc buffer overflow vfs Cross references: Obsoletes: CVE Names: CAN-2003-1023 - - --------------------------------------------------------------------- 1. Topic: Updated mc packages that resolve a buffer overflow vulnerability are now available. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux WS version 2.1 - i386 3. Problem description: Midnight Commander is a visual shell much like a file manager. A buffer overflow has been found in Midnight Commander's virtual filesystem code. Specifically, a stack-based buffer overflow in vfs_s_resolve_symlink of vfs/direntry.c allows remote attackers to execute arbitrary code during symlink conversion. Users of Midnight Commander should install these updated packages, which resolve this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website: https://rhn.redhat.com/help/latest-up2date.pxt 5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info): 113850 - CAN-2003-1023 mc stack overflow 6. RPMs required: Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/mc-4.5.51-36.1.src.rpm i386: Available from Red Hat Network: gmc-4.5.51-36.1.i386.rpm Available from Red Hat Network: mc-4.5.51-36.1.i386.rpm Available from Red Hat Network: mcserv-4.5.51-36.1.i386.rpm ia64: Available from Red Hat Network: gmc-4.5.51-36.1.ia64.rpm Available from Red Hat Network: mc-4.5.51-36.1.ia64.rpm Available from Red Hat Network: mcserv-4.5.51-36.1.ia64.rpm Red Hat Linux Advanced Workstation 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/mc-4.5.51-36.1.src.rpm ia64: Available from Red Hat Network: gmc-4.5.51-36.1.ia64.rpm Available from Red Hat Network: mc-4.5.51-36.1.ia64.rpm Available from Red Hat Network: mcserv-4.5.51-36.1.ia64.rpm Red Hat Enterprise Linux WS version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/mc-4.5.51-36.1.src.rpm i386: Available from Red Hat Network: gmc-4.5.51-36.1.i386.rpm Available from Red Hat Network: mc-4.5.51-36.1.i386.rpm Available from Red Hat Network: mcserv-4.5.51-36.1.i386.rpm 7. Verification: MD5 sum Package Name - - -------------------------------------------------------------------------- 88a12c94a1bde5d99dd77f7ca9650f65 2.1AS/en/os/SRPMS/mc-4.5.51-36.1.src.rpm 52d6955848afb48388faf13ae366220f 2.1AS/en/os/i386/gmc-4.5.51-36.1.i386.rpm 725706e3fe5afe0e42f6f5d3838e0993 2.1AS/en/os/i386/mc-4.5.51-36.1.i386.rpm 4b1555e529ff5f58d74357ecfb313b28 2.1AS/en/os/i386/mcserv-4.5.51-36.1.i386.rpm 4899c0acad932680d365c9e0e41007e1 2.1AS/en/os/ia64/gmc-4.5.51-36.1.ia64.rpm 23690284ac11ff9687499d98c0f4f512 2.1AS/en/os/ia64/mc-4.5.51-36.1.ia64.rpm 580b72c7aabd6fe2be28db01c9dbf673 2.1AS/en/os/ia64/mcserv-4.5.51-36.1.ia64.rpm 88a12c94a1bde5d99dd77f7ca9650f65 2.1AW/en/os/SRPMS/mc-4.5.51-36.1.src.rpm 4899c0acad932680d365c9e0e41007e1 2.1AW/en/os/ia64/gmc-4.5.51-36.1.ia64.rpm 23690284ac11ff9687499d98c0f4f512 2.1AW/en/os/ia64/mc-4.5.51-36.1.ia64.rpm 580b72c7aabd6fe2be28db01c9dbf673 2.1AW/en/os/ia64/mcserv-4.5.51-36.1.ia64.rpm 88a12c94a1bde5d99dd77f7ca9650f65 2.1WS/en/os/SRPMS/mc-4.5.51-36.1.src.rpm 52d6955848afb48388faf13ae366220f 2.1WS/en/os/i386/gmc-4.5.51-36.1.i386.rpm 725706e3fe5afe0e42f6f5d3838e0993 2.1WS/en/os/i386/mc-4.5.51-36.1.i386.rpm 4b1555e529ff5f58d74357ecfb313b28 2.1WS/en/os/i386/mcserv-4.5.51-36.1.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available from https://www.redhat.com/security/keys.html You can verify each package with the following command: rpm --checksig -v <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: md5sum <filename> 8. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-1023 9. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/solutions/security/news/contact.html Copyright 2003 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD4DBQFAH1wAXlSAg2UNWIIRAmxpAKCXFt+g7Bawu41UUJKoduiqRIsVbgCUDieM amUAkQFC973KRdocoOn82A== =pHC8 - -----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. 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 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 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: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQCBEvyh9+71yA2DNAQHtjgP9EK7BkW1sxWjzlMDJ6KILdQFlf7dDyWLC R+LwlgUiJNxBMUweF3AfeiN41U7RAoHlM2xHuR+bHQ7I0Vpz7AkI5y9r26AAJv3G DzQRtaUBOcZzTZuZyisFvWOEhdwh2Fnd2x56qO7VC4C9/ZbxAtc7w4F12L4X27Mc 9NYwSoi8GHU= =0+aX -----END PGP SIGNATURE-----