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Fencer Intel
medium 4.4

CVE-2019-15030 json

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility…

published 7y ago modified 4mo ago also EUVD-2019-6117

cvss
4.4
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 39%
public exploits
0
none known

Summary

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process because of a missing arch/powerpc/kernel/process.c check.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 5.2.17-1

debian advisories DEBIAN-CVE-2019-15030

  • linux Ubuntu 18.04 LTS 4.15.0-64.73
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1050.52
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1044.46
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1044.70
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-64.73~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.0.0-29.31~18.04.1
  • linux-kvm Ubuntu 18.04 LTS 4.15.0-1046.46
  • linux-oem Ubuntu 18.04 LTS 4.15.0-1056.65

ubuntu advisories UBUNTU-CVE-2019-15030

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 4.18.0-147.8.1.el8_1
  • perf RHEL 8 4.18.0-147.8.1.el8_1
  • bpftool RHEL 8 4.18.0-147.8.1.el8_1
  • kernel-core RHEL 8 4.18.0-147.8.1.el8_1
  • kernel-tools RHEL 8 4.18.0-147.8.1.el8_1
  • python3-perf RHEL 8 4.18.0-147.8.1.el8_1
  • kernel-modules RHEL 8 4.18.0-147.8.1.el8_1
  • kernel-zfcpdump RHEL 8 4.18.0-147.8.1.el8_1

red hat advisories RHSA-2020:1372RHSA-2020:0740

  • 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-syms SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-122.7.1
  • kernel-source SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-122.7.1
  • kernel-default SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +2 more 4.12.14-122.7.1
  • kernel-obs-build SLE Software Development Kit 12 SP5 4.12.14-122.7.1
  • kernel-rt SLE Real Time 12 SP4 4.12.14-8.6.1

suse advisories SUSE-SU-2020:0093-1SUSE-SU-2019:3200-1SUSE-SU-2019:2756-1SUSE-SU-2019:2738-1SUSE-SU-2019:2658-1SUSE-SU-2019:2651-1

  • 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-lp151.28.16.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.16.1

opensuse advisories openSUSE-SU-2024:10728-1openSUSE-SU-2024:13704-1openSUSE-SU-2019:2181-1openSUSE-SU-2019:2173-1

Is CVE-2019-15030 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.

Check with Fencer

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-2019-15030 updated cvss 4.4

kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception

  • Red Hat Enterprise Linux 8 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +6 more
    affected: workaround, no fix available “When applicable rely on FPU emulation (for example by rebuilding the critical services code) instead of the hardware FPU.”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-147.8.1.el8_1, kernel-debuginfo-common-aarch64 4.18.0-147.8.1.el8_1, kernel-debuginfo-common-ppc64le 4.18.0-147.8.1.el8_1 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-147.8.1.el8_1, kernel 4.18.0-147.8.1.el8_1, bpftool 4.18.0-147.8.1.el8_1, kernel-core 4.18.0-147.8.1.el8_1, kernel-tools 4.18.0-147.8.1.el8_1, python3-perf 4.18.0-147.8.1.el8_1, +15 more
    fixed: vendor fix “When applicable rely on FPU emulation (for example by rebuilding the critical services code) instead of the hardware FPU.” RHSA-2020:1372
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.18.1.el7a, kernel 4.14.0-115.18.1.el7a, kernel-alt 4.14.0-115.18.1.el7a, python-perf 4.14.0-115.18.1.el7a, kernel-tools 4.14.0-115.18.1.el7a, kernel-tools-libs 4.14.0-115.18.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.18.1.el7a
    fixed: vendor fix “When applicable rely on FPU emulation (for example by rebuilding the critical services code) instead of the hardware FPU.” RHSA-2020:0740
  • 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, bpftool, kernel-rt, python-perf, kernel-kdump, +8 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

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/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.