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Fedora Legacy Update AdvisorySynopsis: Updated zip package fixes security issue Advisory ID: FLSA:2255 Issue date: 2005-02-01 Product: Red Hat Linux, Fedora Core Keywords: Bugfix Cross references: https://bugzilla.fedora.us/show_bug.cgi?id=2255 CVE Names: CAN-2004-1010 ---------------------------------------------------------------------
--------------------------------------------------------------------- 1. Topic:
An updated zip package that fixes a buffer overflow vulnerability is now available.
The zip program is an archiving utility which can create ZIP-compatible archives.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386 Red Hat Linux 9 - i386 Fedora Core 1 - i386
3. Problem description:
A buffer overflow bug has been discovered in zip when handling long file names. An attacker could create a specially crafted path which could cause zip to crash or execute arbitrary instructions. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1010 to this issue.
Users of zip should upgrade to this updated package, which contains backported patches and is not vulnerable to 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 yum and apt. Many people find this an easier way to apply updates. To use yum issue:
yum update
or to use apt:
apt-get update; apt-get upgrade
This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www fedoralegacy.org/docs for directions on how to configure yum and apt-get.
5. Bug IDs fixed:
http://bugzilla.fedora.us - bug #2255 - zip long path buffer overflow
6. RPMs required:
Red Hat Linux 7.3:
SRPM: http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/zip-2.3-26.1.0.7.3.legacy.src.rpm
i386: http://download.fedoralegacy.org/redhat/7.3/updates/i386/zip-2.3-26.1.0.7.3.legacy.i386.rpm
Red Hat Linux 9:
SRPM: http://download.fedoralegacy.org/redhat/9/updates/SRPMS/zip-2.3-26.1.0.9.legacy.src.rpm
i386: http://download.fedoralegacy.org/redhat/9/updates/i386/zip-2.3-26.1.0.9.legacy.i386.rpm
Fedora Core 1:
SRPM: http://download.fedoralegacy.org/fedora/1/updates/SRPMS/zip-2.3-26.1.1.legacy.src.rpm
i386: http://download.fedoralegacy.org/fedora/1/updates/i386/zip-2.3-26.1.1.legacy.i386.rpm
7. Verification:
SHA1 sum Package Name ---------------------------------------------------------------------
7b1134632529e30a471d2ae038f414f407ac0d3e redhat/7.3/updates/i386/zip-2.3-26.1.0.7.3.legacy.i386.rpm
8db58039a432c0f0c9ff01e07b9190ad23ac4413 redhat/7.3/updates/SRPMS/zip-2.3-26.1.0.7.3.legacy.src.rpm
95966b2b9fdac8f17c74226c3c033b24dd6c9226 redhat/9/updates/i386/zip-2.3-26.1.0.9.legacy.i386.rpm
92b76aadb2e46b57dd9b71927dada7b1c1154dae redhat/9/updates/SRPMS/zip-2.3-26.1.0.9.legacy.src.rpm
9ef4498e118ca6b4a8f72b02fecde57924d51267 fedora/1/updates/i386/zip-2.3-26.1.1.legacy.i386.rpm
2dcdfc8e6ac63e2b74cf7c781c078773e0265eb8 fedora/1/updates/SRPMS/zip-2.3-26.1.1.legacy.src.rpm
These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy org/about/security.php
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 sha1sum with the following command:
sha1sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1010 http://lists.netsys.com/pipermail/full-disclosure/2004-November/028379.html
9. Contact:
The Fedora Legacy security contact is <secnotice@xxxxxxxxxxxxxxxx>. More project details at http://www.fedoralegacy.org
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