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CVE-2015-5364

25
FAUCET Score

CVE-2015-5364 is a denial-of-service vulnerability in the Linux kernel (versions prior to 4.0.6) affecting Canonical, Debian, Linux, and Red Hat distributions. It stems from improper processor yielding in the udp_recvmsg and udpv6_recvmsg functions. An unauthenticated remote attacker can exploit this with low complexity by sending a flood of UDP packets with incorrect checksums, leading to a system hang. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.70CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.4.109CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.5, < 3.10.81CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.11, < 3.12.44CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.14.45CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.27%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0627 is in the 88th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-408.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-573.3.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Advanced Update SupportFixed in: kernel-0:2.6.32-358.71.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Advanced Update SupportFixed in: kernel-0:2.6.32-431.72.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Extended Update SupportFixed in: kernel-0:2.6.32-504.49.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-229.14.1.rt56.141.13.el7_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-229.14.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-229.rt56.161.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2015-5364Important

kernel: net: incorrect processing of checksums in UDP implementation

Jul 1, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
kb.juniper.net / InfoCenter/index
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00023.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00049.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-08/msg00011.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00004.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00008.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00009.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00011.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00018.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00021.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2015-1623.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1778.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1787.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-0045.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1096.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-1100.html
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1225
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
github.com / torvalds/linux/commit/beb39db59d14990e401e235faf66a6b9b31240b0
Third Party Advisory
twitter.com / grsecurity/status/605854034260426753
Third Party Advisory
debian.org / security/2015/dsa-3313
Third Party Advisory
debian.org / security/2015/dsa-3329
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.0.6
Vendor Advisory
openwall.com / lists/oss-security/2015/06/30/13
Mailing ListThird Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
Third Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
Third Party Advisory
securityfocus.com / bid/75510
Third Party AdvisoryVDB Entry
securitytracker.com / id/1032794
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2680-1
Third Party Advisory
ubuntu.com / usn/USN-2681-1
Third Party Advisory
ubuntu.com / usn/USN-2682-1
Third Party Advisory
ubuntu.com / usn/USN-2683-1
Third Party Advisory
ubuntu.com / usn/USN-2684-1
Third Party Advisory
ubuntu.com / usn/USN-2713-1
Third Party Advisory
ubuntu.com / usn/USN-2714-1
Third Party Advisory