CVE-2010-4263

The igb_receive_skb function in drivers/net/igb/igb_main.c in the Intel Gigabit Ethernet (aka igb) subsystem in the Linux kernel before 2.6.34, when Single Root I/O Virtualization (SR-IOV) and promiscuous mode are enabled but no VLANs are registered, allows remote attackers to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact via a VLAN tagged frame.

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=31b24b955c3ebbb6f3008a6374e61cf7c05a193c
• http://openwall.com/lists/oss-security/2010/12/06/3
• http://openwall.com/lists/oss-security/2010/12/06/9
• http://secunia.com/advisories/42884
• http://secunia.com/advisories/42890
• http://secunia.com/advisories/46397
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
• http://www.redhat.com/support/errata/RHSA-2011-0007.html
• http://www.redhat.com/support/errata/RHSA-2011-0017.html
• http://www.securityfocus.com/archive/1/520102/100/0/threaded
• http://www.securityfocus.com/bid/45208
• http://www.vmware.com/security/advisories/VMSA-2011-0012.html
• https://bugzilla.kernel.org/show_bug.cgi?id=15582
• https://bugzilla.redhat.com/show_bug.cgi?id=660188