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CVE-2013-6368

17
FAUCET Score

CVE-2013-6368 is a local privilege escalation and denial-of-service vulnerability affecting the KVM subsystem in the Linux kernel up to version 3.12.5, including Red Hat Enterprise Linux. The vulnerability stems from improper handling of VAPIC synchronization operations involving page-end addresses. With a CVSS score of 6.2 (AV:L/AC:H/Au:N/C:C/I:C/A:C), it requires local access and high attack complexity, but can lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.12.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.2MEDIUM

AV:L/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 82nd percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm-0:83-266.el5_10.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-431.1.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Extended Update SupportFixed in: kernel-0:2.6.32-358.37.1.el6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm

Vendor Advisories (1)

redhatCVE-2013-6368Important

kvm: cross page vapic_addr access

Dec 12, 2013

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2014-02/msg00002.html
lists.opensuse.org / opensuse-security-announce/2014-02/msg00003.html
lists.opensuse.org / opensuse-updates/2014-02/msg00045.html
rhn.redhat.com / errata/RHSA-2013-1801.html
rhn.redhat.com / errata/RHSA-2014-0163.html
rhn.redhat.com / errata/RHSA-2014-0284.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/fda4e2e85589191b123d31cdc21fd33ee70f50fd
ExploitPatch
openwall.com / lists/oss-security/2013/12/12/12
securityfocus.com / bid/64291
ubuntu.com / usn/USN-2113-1
ubuntu.com / usn/USN-2117-1
ubuntu.com / usn/USN-2133-1
ubuntu.com / usn/USN-2134-1
ubuntu.com / usn/USN-2135-1
ubuntu.com / usn/USN-2136-1
ubuntu.com / usn/USN-2138-1
ubuntu.com / usn/USN-2139-1
ubuntu.com / usn/USN-2141-1