-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDKSA-2006:167 http://www.mandriva.com/security/ _______________________________________________________________________ Package : gzip Date : September 20, 2006 Affected: 2006.0, Corporate 3.0, Corporate 4.0, Multi Network Firewall 2.0 _______________________________________________________________________ Problem Description: NULL Dereference (CVE-2006-4334) A stack modification vulnerability (where a stack buffer can be modified out of bounds, but not in the traditional stack overrun sense) exists in the LZH decompression support of gzip. (CVE-2006-4335) A .bss buffer underflow exists in gzip's pack support, where a loop from build_tree() does not enforce any lower bound while constructing the prefix table. (CVE-2006-4336) A .bss buffer overflow vulnerability exists in gzip's LZH support, due to it's inability to handle exceptional input in the make_table() function, a pathological decoding table can be constructed in such a way as to generate counts so high that the rapid growth of `nextcode` exceeds the size of the table[] buffer. (CVE-2006-4337) A possible infinite loop exists in code from unlzh.c for traversing the branches of a tree structure. This makes it possible to disrupt the operation of automated systems relying on gzip for data decompression, resulting in a minor DoS. (CVE-2006-4338) Updated packages have been patched to address these issues. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4334 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4335 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4336 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4337 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4338 _______________________________________________________________________ Updated Packages: Mandriva Linux 2006.0: 6da645cd7adea1af99a3fcd11e5a3fbc 2006.0/i586/gzip-1.2.4a-15.3.20060mdk.i586.rpm d4acb45be5d2683759578a37d1b8435f 2006.0/SRPMS/gzip-1.2.4a-15.3.20060mdk.src.rpm Mandriva Linux 2006.0/X86_64: 732d50ab4b4d7e18751f8a24026182d2 2006.0/x86_64/gzip-1.2.4a-15.3.20060mdk.x86_64.rpm d4acb45be5d2683759578a37d1b8435f 2006.0/SRPMS/gzip-1.2.4a-15.3.20060mdk.src.rpm Corporate 3.0: 6d80bed89cf647be72f127ed17c5359c corporate/3.0/i586/gzip-1.2.4a-13.5.C30mdk.i586.rpm 6c4e3de8975f5f568c5a7a18e7946112 corporate/3.0/SRPMS/gzip-1.2.4a-13.5.C30mdk.src.rpm Corporate 3.0/X86_64: 7ed6fcfcaa6a43d5e6d055f72a7f7bc5 corporate/3.0/x86_64/gzip-1.2.4a-13.5.C30mdk.x86_64.rpm 6c4e3de8975f5f568c5a7a18e7946112 corporate/3.0/SRPMS/gzip-1.2.4a-13.5.C30mdk.src.rpm Corporate 4.0: da60be3f5d293fa5c246edf6ae256420 corporate/4.0/i586/gzip-1.2.4a-15.3.20060mlcs4.i586.rpm 71ee80833c3dd784d1a604698376b0a4 corporate/4.0/SRPMS/gzip-1.2.4a-15.3.20060mlcs4.src.rpm Corporate 4.0/X86_64: 940923c3880d84e597a8507155cc81fd corporate/4.0/x86_64/gzip-1.2.4a-15.3.20060mlcs4.x86_64.rpm 71ee80833c3dd784d1a604698376b0a4 corporate/4.0/SRPMS/gzip-1.2.4a-15.3.20060mlcs4.src.rpm Multi Network Firewall 2.0: c60c6b5559a4f6f3c9fa811433f2bce6 mnf/2.0/i586/gzip-1.2.4a-13.5.M20mdk.i586.rpm b68cb1643f57f850fef0224788f95795 mnf/2.0/SRPMS/gzip-1.2.4a-13.5.M20mdk.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/security/advisories If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFEa5fmqjQ0CJFipgRAsAYAKCe1lgl7sy1o33Xa63FGEMmW6+GPQCdGhUd XWAk7HaQOXICJUcuFHxyYSE= =C3be -----END PGP SIGNATURE-----
