Vulnerability Details : 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 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.
Vulnerability category: Input validation
Products affected by CVE-2013-1943
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:6.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
Threat overview for CVE-2013-1943
Top countries where our scanners detected CVE-2013-1943
Top open port discovered on systems with this issue
53
IPs affected by CVE-2013-1943 2,700
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2013-1943!
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Exploit prediction scoring system (EPSS) score for CVE-2013-1943
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 39 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2013-1943
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2013-1943
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2013-1943
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa3d315a4ce2c0891cdde262562e710d95fba19e
-
https://github.com/torvalds/linux/commit/fa3d315a4ce2c0891cdde262562e710d95fba19e
KVM: Validate userspace_addr of memslot when registered · torvalds/linux@fa3d315 · GitHubPatch;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=950490
950490 – (CVE-2013-1943) CVE-2013-1943 kernel: kvm: missing check in kvm_set_memory_region()Issue Tracking;Patch;Third Party Advisory
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http://www.ubuntu.com/usn/USN-1939-1
USN-1939-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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