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medium 4.7

CVE-2019-19065 json

A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a…

published 6y ago modified 4mo ago also EUVD-2019-8704

cvss
4.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).

Patch / fix

  • linux linux_kernel 5.3.9
  • linux Debian 14, Debian 13, Debian 12 5.3.9-1

debian advisories DEBIAN-CVE-2019-19065

  • linux Ubuntu 18.04 LTS 4.15.0-72.81
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1056.58
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1050.53
  • linux-gcp Ubuntu 18.04 LTS 5.0.0-1028.29~18.04.1
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-72.81~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.3.0-26.28~18.04.1
  • linux-kvm Ubuntu 18.04 LTS 4.15.0-1051.51
  • linux-oem Ubuntu 18.04 LTS 4.15.0-1065.75

ubuntu advisories UBUNTU-CVE-2019-19065

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-rt RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-kvm RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-core RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-modules RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-debug-kvm RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-debug-core RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-debug-modules RHEL 8 4.18.0-193.rt13.51.el8
  • kernel-rt-modules-extra RHEL 8 4.18.0-193.rt13.51.el8

red hat advisories RHSA-2020:1567RHSA-2020:1769

  • 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-rt SLE Real Time 12 SP4 4.12.14-8.12.1
  • kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.12.1
  • kernel-rt_debug SLE Real Time 12 SP4 4.12.14-8.12.1
  • kernel-source-rt SLE Real Time 12 SP4 4.12.14-8.12.1

suse advisories SUSE-SU-2020:0613-1SUSE-SU-2020:0599-1SUSE-SU-2020:0093-1SUSE-SU-2019:3381-1SUSE-SU-2019:3379-1SUSE-SU-2019:3372-1

  • 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

Is CVE-2019-19065 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2019-19065 updated cvss 4.7

kernel: A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c allows for a DoS

  • Red Hat Enterprise Linux 7 kernel, bpftool, kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, +1 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-193.el8, kernel-debuginfo-common-aarch64 4.18.0-193.el8, kernel-debuginfo-common-ppc64le 4.18.0-193.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-193.el8, kernel 4.18.0-193.el8, bpftool 4.18.0-193.el8, kernel-core 4.18.0-193.el8, kernel-tools 4.18.0-193.el8, python3-perf 4.18.0-193.el8, +15 more
    fixed: vendor fix RHSA-2020:1769
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-193.rt13.51.el8, kernel-rt-core 4.18.0-193.rt13.51.el8, kernel-rt-modules 4.18.0-193.rt13.51.el8, kernel-rt-debug-core 4.18.0-193.rt13.51.el8, kernel-rt-debug-modules 4.18.0-193.rt13.51.el8, kernel-rt-modules-extra 4.18.0-193.rt13.51.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-193.rt13.51.el8, kernel-rt-kvm 4.18.0-193.rt13.51.el8, kernel-rt-core 4.18.0-193.rt13.51.el8, kernel-rt-modules 4.18.0-193.rt13.51.el8, kernel-rt-debug-kvm 4.18.0-193.rt13.51.el8, kernel-rt-debug-core 4.18.0-193.rt13.51.el8, +4 more
    fixed: vendor fix RHSA-2020:1567
  • 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 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

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

Classification

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

References

Sources

Fencer Intel 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.