86889 2002-12-17 19:10 /180 rader/ <bugzilla@redhat.com> Importerad: 2002-12-17 19:10 av Brevbäraren Extern mottagare: redhat-watch-list@redhat.com Extern mottagare: redhat-announce-list@redhat.com Mottagare: Bugtraq (import) <2787> Ärende: [RHSA-2002:293-09] Updated Fetchmail packages fix security vulnerability ------------------------------------------------------------ --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated Fetchmail packages fix security vulnerability Advisory ID: RHSA-2002:293-09 Issue date: 2002-12-16 Updated on: 2002-12-17 Product: Red Hat Linux Keywords: flaw:buf fetchmail Cross references: Obsoletes: RHSA-2002:215 CVE Names: CAN-2002-1365 --------------------------------------------------------------------- 1. Topic: Updated Fetchmail packages are available for Red Hat Linux versions 6.2, 7, 7.1, 7.2, 7.3, and 8.0 which close a remotely-exploitable vulnerability in unpatched versions of Fetchmail prior to 6.2.0. 2. Relevant releases/architectures: Red Hat Linux 6.2 - i386 Red Hat Linux 7.0 - i386 Red Hat Linux 7.1 - i386 Red Hat Linux 7.2 - i386, ia64 Red Hat Linux 7.3 - i386 Red Hat Linux 8.0 - i386 3. Problem description: Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links such as SLIP and PPP connections. A bug has been found in the header parsing code in versions of Fetchmail prior to 6.2.0. This bug allows a remote attacker to crash Fetchmail and potentially execute arbitrary code by sending a carefully crafted email which is then parsed by Fetchmail. All users of Fetchmail are advised to upgrade to the errata packages containing a backported fix which corrects 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. 5. RPMs required: Red Hat Linux 6.2: SRPMS: ftp://updates.redhat.com/6.2/en/os/SRPMS/fetchmail-5.9.0-21.6.2.src.rpm i386: ftp://updates.redhat.com/6.2/en/os/i386/fetchmail-5.9.0-21.6.2.i386.rpm ftp://updates.redhat.com/6.2/en/os/i386/fetchmailconf-5.9.0-21.6.2.i386.rpm Red Hat Linux 7.0: SRPMS: ftp://updates.redhat.com/7.0/en/os/SRPMS/fetchmail-5.9.0-21.7.1.src.rpm i386: ftp://updates.redhat.com/7.0/en/os/i386/fetchmail-5.9.0-21.7.1.i386.rpm ftp://updates.redhat.com/7.0/en/os/i386/fetchmailconf-5.9.0-21.7.1.i386.rpm Red Hat Linux 7.1: SRPMS: ftp://updates.redhat.com/7.1/en/os/SRPMS/fetchmail-5.9.0-21.7.1.src.rpm i386: ftp://updates.redhat.com/7.1/en/os/i386/fetchmail-5.9.0-21.7.1.i386.rpm ftp://updates.redhat.com/7.1/en/os/i386/fetchmailconf-5.9.0-21.7.1.i386.rpm Red Hat Linux 7.2: SRPMS: ftp://updates.redhat.com/7.2/en/os/SRPMS/fetchmail-5.9.0-21.7.3.src.rpm i386: ftp://updates.redhat.com/7.2/en/os/i386/fetchmail-5.9.0-21.7.3.i386.rpm ftp://updates.redhat.com/7.2/en/os/i386/fetchmailconf-5.9.0-21.7.3.i386.rpm ia64: ftp://updates.redhat.com/7.2/en/os/ia64/fetchmail-5.9.0-21.7.3.ia64.rpm ftp://updates.redhat.com/7.2/en/os/ia64/fetchmailconf-5.9.0-21.7.3.ia64.rpm Red Hat Linux 7.3: SRPMS: ftp://updates.redhat.com/7.3/en/os/SRPMS/fetchmail-5.9.0-21.7.3.src.rpm i386: ftp://updates.redhat.com/7.3/en/os/i386/fetchmail-5.9.0-21.7.3.i386.rpm ftp://updates.redhat.com/7.3/en/os/i386/fetchmailconf-5.9.0-21.7.3.i386.rpm Red Hat Linux 8.0: SRPMS: ftp://updates.redhat.com/8.0/en/os/SRPMS/fetchmail-5.9.0-21.8.0.src.rpm i386: ftp://updates.redhat.com/8.0/en/os/i386/fetchmail-5.9.0-21.8.0.i386.rpm 6. Verification: MD5 sum Package Name -------------------------------------------------------------------------- f7697a08603fa76430178a091fa85888 6.2/en/os/SRPMS/fetchmail-5.9.0-21.6.2.src.rpm 4a70148fbd89e8ecbca3b5a3749f8e43 6.2/en/os/i386/fetchmail-5.9.0-21.6.2.i386.rpm 4d3183bcfd8d98d38e6b49a8d8b8e775 6.2/en/os/i386/fetchmailconf-5.9.0-21.6.2.i386.rpm 9b976c0c149a670b871cc776f8157753 7.0/en/os/SRPMS/fetchmail-5.9.0-21.7.1.src.rpm 69b8889f32b1270a47635f1d014618d4 7.0/en/os/i386/fetchmail-5.9.0-21.7.1.i386.rpm c66f7d8182710f5feed6f986823c740f 7.0/en/os/i386/fetchmailconf-5.9.0-21.7.1.i386.rpm 9b976c0c149a670b871cc776f8157753 7.1/en/os/SRPMS/fetchmail-5.9.0-21.7.1.src.rpm 69b8889f32b1270a47635f1d014618d4 7.1/en/os/i386/fetchmail-5.9.0-21.7.1.i386.rpm c66f7d8182710f5feed6f986823c740f 7.1/en/os/i386/fetchmailconf-5.9.0-21.7.1.i386.rpm a07458a29e29b47eac235a87fcb5ffce 7.2/en/os/SRPMS/fetchmail-5.9.0-21.7.3.src.rpm 3b28556558f81954634d207e4d96bfc8 7.2/en/os/i386/fetchmail-5.9.0-21.7.3.i386.rpm fd680276bae4dd8695f56ac754515be2 7.2/en/os/i386/fetchmailconf-5.9.0-21.7.3.i386.rpm ed9ca9ad44b836ee14a6fcb8e2df1798 7.2/en/os/ia64/fetchmail-5.9.0-21.7.3.ia64.rpm c6f417b671cec43314f81fca18caa512 7.2/en/os/ia64/fetchmailconf-5.9.0-21.7.3.ia64.rpm a07458a29e29b47eac235a87fcb5ffce 7.3/en/os/SRPMS/fetchmail-5.9.0-21.7.3.src.rpm 3b28556558f81954634d207e4d96bfc8 7.3/en/os/i386/fetchmail-5.9.0-21.7.3.i386.rpm fd680276bae4dd8695f56ac754515be2 7.3/en/os/i386/fetchmailconf-5.9.0-21.7.3.i386.rpm 122f71743704320e5ec54347909e9079 8.0/en/os/SRPMS/fetchmail-5.9.0-21.8.0.src.rpm a6098fae36da8f690d7be1dfc62833fc 8.0/en/os/i386/fetchmail-5.9.0-21.8.0.i386.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at http://www.redhat.com/about/contact/pgpkey.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> 7. References: http://tuxedo.org/~esr/fetchmail/NEWS http://security.e-matters.de/advisories/052002.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1365 8. Contact: The Red Hat security contact is <security@redhat.com>. More contact details at http://www.redhat.com/solutions/security/news/contact.html Copyright(c) 2000, 2001, 2002 Red Hat, Inc. (86889) / <bugzilla@redhat.com>/----------(Ombruten)