CVE-2010-3437

Integer signedness error in the pkt_find_dev_from_minor function in drivers/block/pktcdvd.c in the Linux kernel before 2.6.36-rc6 allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and system crash) via a crafted index value in a PKT_CTRL_CMD_STATUS ioctl call.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=252a52aa4fa22a668f019e55b3aac3ff71ec1c29
• http://jon.oberheide.org/files/cve-2010-3437.c
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://secunia.com/advisories/42778
• http://secunia.com/advisories/42801
• http://secunia.com/advisories/42932
• http://www.debian.org/security/2010/dsa-2126
• http://www.exploit-db.com/exploits/15150/
• http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc6
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
• http://www.openwall.com/lists/oss-security/2010/09/28/2
• http://www.openwall.com/lists/oss-security/2010/09/28/6
• http://www.redhat.com/support/errata/RHSA-2010-0842.html
• http://www.securityfocus.com/bid/43551
• http://www.ubuntu.com/usn/USN-1000-1
• http://www.vupen.com/english/advisories/2011/0012
• http://www.vupen.com/english/advisories/2011/0124
• http://www.vupen.com/english/advisories/2011/0298
• https://bugzilla.redhat.com/show_bug.cgi?id=638085