High severity · published Jul 16, 2013
CVE-2013-1943
The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address…
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address space, which allows local users to gain privileges or obtain sensitive information from kernel memory via a crafted application, related to arch/x86/kvm/paging_tmpl.h and virt/kvm/kvm_main.c.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 3.0 · source: NVD
EL
Enterprise Linux · Redhat
5.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
6.2; 6.3 · source: NVD
UL
Ubuntu Linux · Canonical
10.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-1943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-1943
git.kernel.org
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa3d315a4ce2c0891cdde262562e710d95fba19e
Broken Link
http://web.archive.org/web/20130329070349/http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
Third Party Advisory
http://www.ubuntu.com/usn/USN-1939-1
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=950490
Patch
https://github.com/torvalds/linux/commit/fa3d315a4ce2c0891cdde262562e710d95fba19e
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