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Fencer Intel
medium 5.5

CVE-2019-12380 json

**DISPUTED** An issue was discovered in the efi subsystem in the Linux kernel through 5.1.5.

published 7y ago modified 4mo ago also EUVD-2019-4015

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

**DISPUTED** An issue was discovered in the efi subsystem in the Linux kernel through 5.1.5. phys_efi_set_virtual_address_map in arch/x86/platform/efi/efi.c and efi_call_phys_prolog in arch/x86/platform/efi/efi_64.c mishandle memory allocation failures. NOTE: This id is disputed as not being an issue because “All the code touched by the referenced commit runs only at boot, before any user processes are started. Therefore, there is no possibility for an unprivileged user to control it.”.

Patch / fix

  • linux Ubuntu 16.04 LTS 4.4.0-186.216
  • linux Ubuntu 18.04 LTS 4.15.0-109.110
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1111.123
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1077.81
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1080.90~16.04.1
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-112.113~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.3.0-26.28~18.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1077.84

ubuntu advisories UBUNTU-CVE-2019-12380

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 SLE Real Time 12 SP4 4.12.14-8.3.1
  • kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.3.1
  • kernel-rt_debug SLE Real Time 12 SP4 4.12.14-8.3.1
  • kernel-source-rt SLE Real Time 12 SP4 4.12.14-8.3.1
  • 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

suse advisories SUSE-SU-2019:2450-1SUSE-SU-2019:2430-1SUSE-SU-2019:1855-1SUSE-SU-2019:1852-1SUSE-SU-2019:1823-2SUSE-SU-2019:1829-1

  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-obs-qa openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-default openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-vanilla openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-kvmsmall openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-obs-build openSUSE Leap 15.0 4.12.14-lp150.12.64.1
  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.7.1

opensuse advisories openSUSE-SU-2019:1579-1openSUSE-SU-2019:1571-1

Is CVE-2019-12380 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-2019-12380 updated cvss 6.2

kernel: memory allocation failure in the efi subsystem leads to denial of service

  • Red Hat Enterprise Linux 7 kernel, bpftool, kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, +1 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix planned “Out of support scope”
  • 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

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
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.