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Red Hat 6.2: RHSA-2000:046-02 Critical: Netscape JPEG Overflow

New netscape packages are available that fix a potential overflow due to improper input verification in netscape's JPEGprocessing code.. ` --------------------------------------------------------------------- Red Hat, Inc. Security Advisory Synopsis: New netscape packages available to fix JPEG problem Advisory ID: RHSA-2000:046-02 Issue date: 2000-07-28 Updated on: 2000-07-28 Product: Red Hat Linux Keywords: netscpae JPEG Cross references: N/A --------------------------------------------------------------------- 1. Topic: New netscape packages are available that fix a potential overflow due to improper input verification in netscape's JPEG processing code. It is recommended that users of netscape update to the fixed packages. Users of Red Hat Linux 6.0 and 6.1 should use the packages for Red Hat Linux 6.2. 2. Relevant releases/architectures: Red Hat Linux 5.2 - i386 Red Hat Linux 6.0 - i386 Red Hat Linux 6.1 - i386 Red Hat Linux 6.2 - i386, alpha 3. Problem description: Netscape's processing of JPEG comments trusted the length parameter for comment fields; by manipulating this value, it would be possible to cause netscape to read in an excessive amount of data, overwriting memory. Specially designed data could allow a remote site to execute arbitrary code as the user of netscape. This vulnerability is fixed in Netscape 4.74. 4. Solution: For each RPM for your particular architecture, run: rpm -Fvh [filename] where filename is the name of the RPM. 5. Bug IDs fixed ( for more info): 10165 - Netscape mail client does not compact folders anymore 13695 - Small glitch in German translation 14506 - Upgrade of netscape-common fails 14657 - /usr/lib/netscape/de_DE: cpio: unlinkfailed 6. RPMs required: Red Hat Linux 5.2: i386: sources: Red Hat Linux 6.2: alpha: i386: sources: 7. Verification: MD5 sum PackageName -------------------------------------------------------------------------- 2520f9f234010f483d14ec524898ad29 5.2/SRPMS/netscape-4.74-0.5.2.src.rpm 2dd30f35857c05304e54253e7564634b 5.2/i386/netscape-common-4.74-0.5.2.i386.rpm 765fc5c8be9638560544379a3c7e1004 5.2/i386/netscape-communicator-4.74-0.5.2.i386.rpm d6ecb766f5d979e2787f239fefcce8fd 5.2/i386/netscape-navigator-4.74-0.5.2.i386.rpm 64999688cbd3b6be723c72d94dcb0f72 6.2/SRPMS/netscape-4.74-0.6.2.src.rpm e75ad6a500fa4ac0ef919f65aa8871bd 6.2/SRPMS/netscape-alpha-4.74-1.src.rpm 2796178bd0f400800d1fb5fccd39880b 6.2/alpha/netscape-common-4.74-1.alpha.rpm 2f2260eb8030751838f9d14a4eca71ae 6.2/alpha/netscape-communicator-4.74-1.alpha.rpm db641b2f9b63c3f986dece1ecc482d32 6.2/alpha/netscape-navigator-4.74-1.alpha.rpm 2f2f1be58b481030eb2da12dcd9a6a54 6.2/i386/netscape-common-4.74-0.6.2.i386.rpm 6b2045ecf408024a64962705c6395a1f 6.2/i386/netscape-communicator-4.74-0.6.2.i386.rpm 03b93972ba0f114d4be9ef50a2a21fa5 6.2/i386/netscape-navigator-4.74-0.6.2.i386.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: Copyright(c) 2000 Red Hat, Inc. `. Fix critical overflow in Netscape JPEG processing on Red Hat 6.2. Update to protect against potential attacks and exploit.. Netscape Patch, Red Hat Linux, JPEG Update, Critical Fix. . Severity: Critical. LinuxSecurity.com Team

Jul 31, 2000 •Critical Red Hat