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CVE-2013-1935

Publication date 16 July 2013

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

A certain Red Hat patch to the KVM subsystem in the kernel package before 2.6.32-358.11.1.el6 on Red Hat Enterprise Linux (RHEL) 6 does not properly implement the PV EOI feature, which allows guest OS users to cause a denial of service (host OS crash) by leveraging a time window during which interrupts are disabled but copy_to_user function calls are possible.

From the Ubuntu Security Team

pv_eoi_put_user called by pv_eoi_set_pending in lapic.c can cause a schedule but is called from with preempt_disable() and local_irq_disable() This lets a local attacker cause a schedule while atomic, denial of service. It is hard to exploit.

Status

Package Ubuntu Release Status
linux 13.04 raring
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
10.04 LTS lucid
Not affected
linux-armadaxp 13.04 raring Not in release
12.10 quantal
Not affected
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release
linux-ec2 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid
Not affected
linux-fsl-imx51 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Ignored
linux-linaro-omap 13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
10.04 LTS lucid Not in release
linux-linaro-shared 13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
10.04 LTS lucid Not in release
linux-linaro-vexpress 13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
10.04 LTS lucid Not in release
linux-lts-backport-maverick 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Ignored
linux-lts-quantal 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release
linux-lts-raring 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release
linux-mvl-dove 13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Ignored
linux-qcm-msm 13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
10.04 LTS lucid Ignored
linux-ti-omap4 13.04 raring
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux