CVE-2008-4210 Information

Description

fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file which allows local users to gain the privileges of a different group and obtain sensitive information or possibly have unspecified other impact by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.

Reference

http://bugzilla.kernel.org/show_bug.cgi?id=8420 http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commit;h=7b82dc0e64e93f430182f36b46b79fcee87d3532 http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22 http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00001.html http://rhn.redhat.com/errata/RHSA-2008-0972.html http://secunia.com/advisories/32237 http://secunia.com/advisories/32344 http://secunia.com/advisories/32356 http://secunia.com/advisories/32485 http://secunia.com/advisories/32759 http://secunia.com/advisories/32799 http://secunia.com/advisories/32918 http://secunia.com/advisories/33201 http://secunia.com/advisories/33280 http://www.debian.org/security/2008/dsa-1653 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22 http://www.mandriva.com/security/advisories?name=MDVSA-2008:220 http://www.openwall.com/lists/oss-security/2008/09/24/5 http://www.openwall.com/lists/oss-security/2008/09/24/8 http://www.redhat.com/support/errata/RHSA-2008-0787.html http://www.redhat.com/support/errata/RHSA-2008-0957.html http://www.redhat.com/support/errata/RHSA-2008-0973.html http://www.securityfocus.com/bid/31368 http://www.ubuntu.com/usn/usn-679-1 https://bugzilla.redhat.com/show_bug.cgi?id=463661 https://exchange.xforce.ibmcloud.com/vulnerabilities/45539 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A6386 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9511