CVE-2013-1798

Severity: medium (CVSS 6.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-03-22 · updated 2026-06-16
Weakness: CWE-20

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.

Affected products

Linux kernel: through 3.8.4; 3.8.0, 3.8.1, 3.8.2, 3.8.3

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2c118bfab8bc6b8bb213abfc35201e441693d55
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
http://rhn.redhat.com/errata/RHSA-2013-0727.html
http://rhn.redhat.com/errata/RHSA-2013-0744.html
http://rhn.redhat.com/errata/RHSA-2013-0746.html
http://rhn.redhat.com/errata/RHSA-2013-0928.html
http://rhn.redhat.com/errata/RHSA-2013-1026.html
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
http://www.openwall.com/lists/oss-security/2013/03/20/9

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