CVE-2011-2498

Published: 28 June 2011

The Linux kernel from v2.3.36 before v2.6.39 allows local unprivileged users to cause a denial of service (memory consumption) by triggering creation of PTE pages.

From the Ubuntu Security Team

The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service.

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	hardy	Not vulnerable
	lucid	Not vulnerable
	maverick	Not vulnerable
	natty	Released (2.6.38-10.44)
	oneiric	Not vulnerable (2.6.39-1.6)
	precise	Not vulnerable (3.1.0-1.1)
	upstream	Released (2.6.39~rc6)
	Patches: Introduced by a63d83f427fbce97a6cea0db2e64b0eb8435cd10 Fixed by f755a042d82b51b54f3bdd0890e5ea56c0fb6807
linux-armadaxp Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Not vulnerable (3.2.0-1600.1)
	upstream	Released (2.6.39~rc6)
linux-ec2 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Ignored (end of life)
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.38-10.44~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (3.0.0-5.6~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-mvl-dove Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Not vulnerable
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	upstream	Released (2.6.39~rc6)
linux-ti-omap4 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	maverick	Not vulnerable
	natty	Released (2.6.38-1209.22)
	oneiric	Not vulnerable (3.0.0-1200.1)
	precise	Not vulnerable (3.0.0-1401.2)
	upstream	Released (2.6.39~rc6)

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Bugs

https://launchpad.net/bugs/922374

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