CVE-2013-1798

Public Exploit

Description

The ioapic_read_indirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPIC_REG_SELECT and IOAPIC_REG_WINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of service (host OS OOPS) via a crafted application.

Category

6.2
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.25%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory mandriva.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html vendor advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2c118bfab8bc6b8bb213abfc35201e441693d55
https://github.com/torvalds/linux/commit/a2c118bfab8bc6b8bb213abfc35201e441693d55 patch exploit
http://www.ubuntu.com/usn/USN-1812-1 vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-0928.html vendor advisory
http://www.ubuntu.com/usn/USN-1809-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-0727.html vendor advisory
http://www.openwall.com/lists/oss-security/2013/03/20/9 mailing list
http://rhn.redhat.com/errata/RHSA-2013-0744.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-0746.html vendor advisory
http://www.ubuntu.com/usn/USN-1813-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=917017
http://rhn.redhat.com/errata/RHSA-2013-1026.html vendor advisory
http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html

Frequently Asked Questions

What is the severity of CVE-2013-1798?
CVE-2013-1798 has been scored as a medium severity vulnerability.
How to fix CVE-2013-1798?
To fix CVE-2013-1798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-1798 being actively exploited in the wild?
It is possible that CVE-2013-1798 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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