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Fencer Vulns
medium 4.7

CVE-2019-3882 json

A flaw was found in the Linux kernel's vfio interface implementation that permits violation of the user's locked memory limit.

published 2019-04-24 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13492

cvss
4.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

A flaw was found in the Linux kernel's vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). Versions 3.10, 4.14 and 4.18 are vulnerable.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.19.37-1

debian advisories DEBIAN-CVE-2019-3882

  • linux Ubuntu 16.04 LTS 4.4.0-148.174
  • linux Ubuntu 18.04 LTS 4.15.0-50.54
  • linux-aws Ubuntu 14.04 LTS 4.4.0-1044.47
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1083.93
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1039.41
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1032.34~16.04.1
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1032.34
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-50.54~16.04.1

ubuntu advisories UBUNTU-CVE-2019-3882

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 8 4.18.0-147.el8
  • perf RHEL 8 4.18.0-147.el8
  • bpftool RHEL 8 4.18.0-147.el8
  • kernel-core RHEL 8 4.18.0-147.el8
  • kernel-tools RHEL 8 4.18.0-147.el8
  • python3-perf RHEL 8 4.18.0-147.el8
  • kernel-modules RHEL 8 4.18.0-147.el8
  • kernel-zfcpdump RHEL 8 4.18.0-147.el8

red hat advisories RHSA-2019:3517RHSA-2019:2029RHSA-2019:3309RHSA-2019:2043

  • kernel-source-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.8.1
  • kernel-syms SLE Module for Development Tools 15 SP1 4.12.14-197.4.1
  • kernel-source SLE Module for Development Tools 15 SP1, SLE Module for Basesystem 15 SP1 4.12.14-197.4.1
  • kernel-default SLE Workstation Extension 15 SP1, SLE Module for Legacy 15 SP1, SLE Module for Basesystem 15 SP1 +2 more 4.12.14-197.4.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP1 4.12.14-197.4.1

suse advisories SUSE-SU-2019:2430-1SUSE-SU-2019:1550-1SUSE-SU-2019:1289-1SUSE-SU-2019:1287-1SUSE-SU-2019:1245-1SUSE-SU-2019:1244-1

  • kernel-source openSUSE Tumbleweed 5.14.6-1.4
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1
  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.4.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.4.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.4.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.4.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.4.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.4.1

opensuse advisories openSUSE-SU-2024:10728-1openSUSE-SU-2024:13704-1openSUSE-SU-2019:1479-1openSUSE-SU-2019:1404-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3882 updated cvss 4.7

kernel: denial of service vector through vfio DMA mappings

  • Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-147.el8, kernel-debuginfo-common-aarch64 4.18.0-147.el8, kernel-debuginfo-common-ppc64le 4.18.0-147.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-147.el8, kernel 4.18.0-147.el8, bpftool 4.18.0-147.el8, kernel-core 4.18.0-147.el8, kernel-tools 4.18.0-147.el8, python3-perf 4.18.0-147.el8, +15 more
    fixed: vendor fix RHSA-2019:3517
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debug-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7
    fixed: vendor fix RHSA-2019:2043
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, kernel-rt-debug-modules 4.18.0-147.rt24.93.el8, kernel-rt-modules-extra 4.18.0-147.rt24.93.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-kvm 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-kvm 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, +4 more
    fixed: vendor fix RHSA-2019:3309
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-kdump 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1062.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.el7 Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • The Linux Foundation kernel

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.