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CVE-2016-4565

26
FAUCET Score

CVE-2016-4565 describes a denial-of-service vulnerability in the InfiniBand (IB) stack of the Linux kernel, affecting versions prior to 4.5.3, including various Canonical and Debian distributions. This flaw allows a local attacker to trigger a kernel memory write operation through a uAPI interface, potentially leading to a system crash or other unspecified impacts. With a CVSSv3 score of 7.8 (High), it requires local access but has low attack complexity, posing significant confidentiality, integrity, and availability risks. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.81CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.10.103CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.11, < 3.12.61CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.14.76CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.15, < 3.16.36CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 79th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-327.rt56.190.el6rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-642.3.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 Advanced Update SupportFixed in: kernel-0:2.6.32-220.67.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Advanced Update SupportFixed in: kernel-0:2.6.32-358.72.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Advanced Update SupportFixed in: kernel-0:2.6.32-431.73.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Extended Update SupportFixed in: kernel-0:2.6.32-504.51.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.7 Extended Update SupportFixed in: kernel-0:2.6.32-573.32.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-327.22.2.rt56.230.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-327.22.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.1 Extended Update SupportFixed in: kernel-0:3.10.0-229.40.1.ael7b
View patch
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-4565Important

kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko

May 7, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00044.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00052.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00054.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00000.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00003.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00008.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00009.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00014.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00015.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00016.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00017.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00018.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00019.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00020.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00023.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00026.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00044.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00055.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2016-1489.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1581.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1617.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1640.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1657.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1814.html
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1277
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1301
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1341
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1406
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3
Vendor Advisory
debian.org / security/2016/dsa-3607
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.5.3
Vendor Advisory
openwall.com / lists/oss-security/2016/05/07/1
Mailing ListThird Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html
Third Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
Third Party Advisory
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
Third Party Advisory
securityfocus.com / bid/90301
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3001-1
Third Party Advisory
ubuntu.com / usn/USN-3002-1
Third Party Advisory
ubuntu.com / usn/USN-3003-1
Third Party Advisory
ubuntu.com / usn/USN-3004-1
Third Party Advisory
ubuntu.com / usn/USN-3005-1
Third Party Advisory
ubuntu.com / usn/USN-3006-1
Third Party Advisory
ubuntu.com / usn/USN-3007-1
Third Party Advisory
ubuntu.com / usn/USN-3018-1
Third Party Advisory
ubuntu.com / usn/USN-3018-2
Third Party Advisory
ubuntu.com / usn/USN-3019-1
Third Party Advisory
ubuntu.com / usn/USN-3021-1
Third Party Advisory
ubuntu.com / usn/USN-3021-2
Third Party Advisory