CVE-2008-4934 Information

Description

The hfsplus_block_allocate function in fs/hfsplus/bitmap.c in the Linux kernel before 2.6.28-rc1 does not check a certain return value from the read_mapping_page function before calling kmap which allows attackers to cause a denial of service (system crash) via a crafted hfsplus filesystem image.

Reference

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.27.y.git;a=commit;h=649f1ee6c705aab644035a7998d7b574193a598a http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.28-rc1 http://rhn.redhat.com/errata/RHSA-2009-0264.html http://secunia.com/advisories/32510 http://secunia.com/advisories/32918 http://secunia.com/advisories/32998 http://secunia.com/advisories/33180 http://secunia.com/advisories/33556 http://secunia.com/advisories/33858 http://www.debian.org/security/2008/dsa-1681 http://www.debian.org/security/2008/dsa-1687 http://www.mandriva.com/security/advisories?name=MDVSA-2008:234 http://www.openwall.com/lists/oss-security/2008/11/03/2 http://www.redhat.com/support/errata/RHSA-2009-0014.html http://www.securityfocus.com/bid/32096 http://www.ubuntu.com/usn/usn-679-1 https://exchange.xforce.ibmcloud.com/vulnerabilities/46327 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A11635