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CVE-2019-3874

23
FAUCET Score

CVE-2019-3874 describes a denial-of-service vulnerability affecting Linux kernels 3.10.x and 4.18.x, specifically impacting canonical, debian, linux, netapp, and redhat distributions. The flaw stems from the SCTP socket buffer not being properly accounted for by the cgroups subsystem, allowing an attacker to exhaust resources. Rated as MEDIUM severity (CVSS 6.5), it can be exploited remotely with low attack complexity, leading to a high impact denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.10.1, <= 3.10.108CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.18.1, <= 4.18.20CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.77%
Probability of exploitation in next 30 days
EPSS Percentile
75.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0177 is in the 95th percentile among its peer group of 1,802 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-147.rt24.93.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-147.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2019-3874Moderate

kernel: SCTP socket buffer memory leak leading to denial of service

Mar 19, 2019

References

access.redhat.com / errata/RHSA-2019:3309
Third Party Advisory
access.redhat.com / errata/RHSA-2019:3517
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2020/09/msg00025.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20190411-0003
Third Party Advisory
usn.ubuntu.com / 3979-1
Third Party Advisory
usn.ubuntu.com / 3980-1
Third Party Advisory
usn.ubuntu.com / 3980-2
Third Party Advisory
usn.ubuntu.com / 3981-1
Third Party Advisory
usn.ubuntu.com / 3981-2
Third Party Advisory
usn.ubuntu.com / 3982-1
Third Party Advisory
usn.ubuntu.com / 3982-2
Third Party Advisory
oracle.com / security-alerts/cpuApr2021.html