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Fencer Vulns
medium 6.5

CVE-2019-19046 json

A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through 5.3.11 allows attack…

published 2019-11-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8685

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of this because an attacker cannot realistically control this failure at probe time

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 5.4.19-1

debian advisories DEBIAN-CVE-2019-19046

  • linux Ubuntu 18.04 LTS 4.15.0-91.92
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1063.67
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1058.62
  • linux-gcp Ubuntu 18.04 LTS 5.0.0-1034.35
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-91.92~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.3.0-46.38~18.04.1
  • linux-kvm Ubuntu 18.04 LTS 4.15.0-1056.57
  • linux-oem Ubuntu 18.04 LTS 4.15.0-1076.86

ubuntu advisories UBUNTU-CVE-2019-19046

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 4.18.0-240.el8
  • perf RHEL 8 4.18.0-240.el8
  • bpftool RHEL 8 4.18.0-240.el8
  • kernel-core RHEL 8 4.18.0-240.el8
  • kernel-tools RHEL 8 4.18.0-240.el8
  • python3-perf RHEL 8 4.18.0-240.el8
  • kernel-modules RHEL 8 4.18.0-240.el8
  • kernel-zfcpdump RHEL 8 4.18.0-240.el8

red hat advisories RHSA-2020:4431RHSA-2020:4060RHSA-2020:4609RHSA-2020:4062RHSA-2020:5656RHSA-2020:5206

  • kernel-rt Real Time Module 15 SP1 4.12.14-14.17.1
  • kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.17.1
  • kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.17.1
  • kernel-source-rt Real Time Module 15 SP1 4.12.14-14.17.1
  • kernel-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-syms-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-source-azure SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-16.7.1
  • kernel-azure SLE Module for Public Cloud 15 SP1 4.12.14-8.22.1

suse advisories SUSE-SU-2020:0613-1SUSE-SU-2020:0093-1SUSE-SU-2019:3372-1SUSE-SU-2019:3317-1SUSE-SU-2019:3200-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.36.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.36.1

opensuse advisories openSUSE-SU-2019:2675-1

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-2019-19046 updated cvss 6.5

kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c

  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-240.el8, kernel-debuginfo-common-aarch64 4.18.0-240.el8, kernel-debuginfo-common-ppc64le 4.18.0-240.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-240.el8, kernel 4.18.0-240.el8, bpftool 4.18.0-240.el8, kernel-core 4.18.0-240.el8, kernel-tools 4.18.0-240.el8, python3-perf 4.18.0-240.el8, +15 more
    fixed: vendor fix RHSA-2020:4431
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perf 3.10.0-957.65.1.el7, kernel 3.10.0-957.65.1.el7, bpftool 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7, kernel-tools 3.10.0-957.65.1.el7, kernel-tools-libs 3.10.0-957.65.1.el7, +2 more
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) perf 3.10.0-1062.40.1.el7, kernel 3.10.0-1062.40.1.el7, bpftool 3.10.0-1062.40.1.el7, python-perf 3.10.0-1062.40.1.el7, kernel-tools 3.10.0-1062.40.1.el7, kernel-tools-libs 3.10.0-1062.40.1.el7, +2 more
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.40.1.el7
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.29.1.el7a, kernel 4.14.0-115.29.1.el7a, kernel-alt 4.14.0-115.29.1.el7a, python-perf 4.14.0-115.29.1.el7a, kernel-tools 4.14.0-115.29.1.el7a, kernel-tools-libs 4.14.0-115.29.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.29.1.el7a
    fixed: vendor fix RHSA-2020:3545
show 11 more
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debug-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7
    fixed: vendor fix RHSA-2020:4062
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-240.rt7.54.el8, kernel-rt-core 4.18.0-240.rt7.54.el8, kernel-rt-modules 4.18.0-240.rt7.54.el8, kernel-rt-debug-core 4.18.0-240.rt7.54.el8, kernel-rt-debug-modules 4.18.0-240.rt7.54.el8, kernel-rt-modules-extra 4.18.0-240.rt7.54.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-240.rt7.54.el8, kernel-rt-kvm 4.18.0-240.rt7.54.el8, kernel-rt-core 4.18.0-240.rt7.54.el8, kernel-rt-modules 4.18.0-240.rt7.54.el8, kernel-rt-debug-kvm 4.18.0-240.rt7.54.el8, kernel-rt-debug-core 4.18.0-240.rt7.54.el8, +4 more
    fixed: vendor fix RHSA-2020:4609
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-kdump 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, +7 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Server EUS (v. 7.6) perf 3.10.0-957.65.1.el7, kernel 3.10.0-957.65.1.el7, bpftool 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7, kernel-kdump 3.10.0-957.65.1.el7, kernel-tools 3.10.0-957.65.1.el7, +7 more
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux Server EUS (v. 7.7) perf 3.10.0-1062.40.1.el7, kernel 3.10.0-1062.40.1.el7, bpftool 3.10.0-1062.40.1.el7, python-perf 3.10.0-1062.40.1.el7, kernel-kdump 3.10.0-1062.40.1.el7, kernel-tools 3.10.0-1062.40.1.el7, +7 more
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debuginfo-common-ppc64 3.10.0-957.65.1.el7, kernel-debuginfo-common-x86_64 3.10.0-957.65.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debuginfo-common-ppc64 3.10.0-1062.40.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.40.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.40.1.el7
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS perf 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • 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 Linux ComputeNode EUS (v. 7.7) kernel-headers 3.10.0-1062.40.1.el7 Red Hat Enterprise Linux Server EUS (v. 7.7) kernel-headers 3.10.0-1062.40.1.el7 Red Hat Enterprise MRG 2 kernel
    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

3.16% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
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.