CVE-2011-1478

Published: 25 July 2011

The napi_reuse_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service (NULL pointer dereference) via a malformed VLAN frame.

From the Ubuntu Security Team

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	hardy	Not vulnerable
	lucid	Released (2.6.32-32.62)
	maverick	Released (2.6.35-30.52)
	natty	Released (2.6.38-3.30)
	oneiric	Not vulnerable (2.6.39-0.0)
	upstream	Released (2.6.38~rc4)
	Patches: Introduced by 5d38a079ce3971f932bbdc0dc5b887806fabd5dc Fixed by 6d152e23ad1a7a5b40fef1f42e017d66e6115159 Introduced by 5d38a079ce3971f932bbdc0dc5b887806fabd5dc Fixed by 66c46d741e2e60f0e8b625b80edb0ab820c46d7a
linux-ec2 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-316.30)
	maverick	Ignored (end of life)
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.31-610.27)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.35-30.54~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.38-3.30~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-mvl-dove Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-217.34)
	maverick	Released (2.6.32-417.34)
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (2.6.38~rc4)
linux-ti-omap4 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Released (2.6.38-1201.2)
	oneiric	Not vulnerable (2.6.38-1309.13)
	upstream	Released (2.6.38~rc4)

References

Bugs

https://launchpad.net/bugs/816549

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