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Fencer Vulns
high 7.0

CVE-2019-11599 json

The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags c…

published 2019-04-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-3269

cvss
7.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
1
Exploit-DB

Summary

The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.

Patch / fix

  • linux linux_kernel 3.16.66, 4.4.183, 4.9.188, 4.14.114, 4.19.37, 5.0.10
  • linux Debian 14, Debian 13, Debian 12 4.19.37-1

debian advisories DEBIAN-CVE-2019-11599

  • linux Ubuntu 16.04 LTS 4.4.0-159.187
  • linux Ubuntu 18.04 LTS 4.15.0-60.67
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1090.101
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1047.49
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1041.43
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1042.45
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-60.67~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.0.0-23.24~18.04.1

ubuntu advisories UBUNTU-CVE-2019-11599

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-2020:0103RHSA-2019:2043RHSA-2020:0543

  • 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-2019:2069-1SUSE-SU-2019:1855-1SUSE-SU-2019:1854-1SUSE-SU-2019:1852-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.10.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.67.1

opensuse advisories openSUSE-SU-2019:1757-1openSUSE-SU-2019:1716-1

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-2019-11599 updated cvss 6.1

kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix planned “Out of support scope”
  • 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
    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
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) perf 3.10.0-862.48.1.el7, kernel 3.10.0-862.48.1.el7, python-perf 3.10.0-862.48.1.el7, kernel-tools 3.10.0-862.48.1.el7, kernel-tools-libs 3.10.0-862.48.1.el7, kernel-abi-whitelists 3.10.0-862.48.1.el7, +1 more
    fixed: vendor fix RHSA-2020:0543
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perf 3.10.0-957.43.1.el7, kernel 3.10.0-957.43.1.el7, bpftool 3.10.0-957.43.1.el7, python-perf 3.10.0-957.43.1.el7, kernel-tools 3.10.0-957.43.1.el7, kernel-tools-libs 3.10.0-957.43.1.el7, +2 more
    fixed: vendor fix RHSA-2020:0179
  • 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 ComputeNode Optional EUS (v. 7.5) kernel-debuginfo-common-x86_64 3.10.0-862.48.1.el7
    fixed: vendor fix RHSA-2020:0543
show 15 more
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.43.1.el7
    fixed: vendor fix RHSA-2020:0179
  • 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
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux Server AUS (v. 7.4) perf 3.10.0-693.62.1.el7, kernel 3.10.0-693.62.1.el7, python-perf 3.10.0-693.62.1.el7, kernel-tools 3.10.0-693.62.1.el7, kernel-tools-libs 3.10.0-693.62.1.el7, kernel-abi-whitelists 3.10.0-693.62.1.el7, +1 more Red Hat Enterprise Linux Server E4S (v. 7.4) perf 3.10.0-693.62.1.el7, kernel 3.10.0-693.62.1.el7, python-perf 3.10.0-693.62.1.el7, kernel-tools 3.10.0-693.62.1.el7, kernel-tools-libs 3.10.0-693.62.1.el7, kernel-bootwrapper 3.10.0-693.62.1.el7, +3 more
    fixed: vendor fix RHSA-2020:0103
  • Red Hat Enterprise Linux Server EUS (v. 7.5) perf 3.10.0-862.48.1.el7, kernel 3.10.0-862.48.1.el7, python-perf 3.10.0-862.48.1.el7, kernel-kdump 3.10.0-862.48.1.el7, kernel-tools 3.10.0-862.48.1.el7, kernel-tools-libs 3.10.0-862.48.1.el7, +6 more
    fixed: vendor fix RHSA-2020:0543
  • Red Hat Enterprise Linux Server EUS (v. 7.6) perf 3.10.0-957.43.1.el7, kernel 3.10.0-957.43.1.el7, bpftool 3.10.0-957.43.1.el7, python-perf 3.10.0-957.43.1.el7, kernel-kdump 3.10.0-957.43.1.el7, kernel-tools 3.10.0-957.43.1.el7, +7 more
    fixed: vendor fix RHSA-2020:0179
  • 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
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.62.1.el7 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.62.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.62.1.el7
    fixed: vendor fix RHSA-2020:0103
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.5) kernel-debuginfo-common-ppc64 3.10.0-862.48.1.el7, kernel-debuginfo-common-x86_64 3.10.0-862.48.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-862.48.1.el7
    fixed: vendor fix RHSA-2020:0543
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debuginfo-common-ppc64 3.10.0-957.43.1.el7, kernel-debuginfo-common-x86_64 3.10.0-957.43.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.43.1.el7
    fixed: vendor fix RHSA-2020:0179
  • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.62.1.el7 Red Hat Enterprise Linux Server TUS (v. 7.4) perf 3.10.0-693.62.1.el7, kernel 3.10.0-693.62.1.el7, python-perf 3.10.0-693.62.1.el7, kernel-tools 3.10.0-693.62.1.el7, kernel-tools-libs 3.10.0-693.62.1.el7, kernel-abi-whitelists 3.10.0-693.62.1.el7, +1 more
    fixed: vendor fix RHSA-2020:0103
  • 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 MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.62.1.rt56.659.el6rt, kernel-rt-trace 3.10.0-693.62.1.rt56.659.el6rt, kernel-rt-vanilla 3.10.0-693.62.1.rt56.659.el6rt, kernel-rt-firmware 3.10.0-693.62.1.rt56.659.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.62.1.rt56.659.el6rt
    fixed: vendor fix RHSA-2020:0100
  • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS perf 3.10.0-957.43.1.el7, python-perf 3.10.0-957.43.1.el7
    fixed: vendor fix RHSA-2020:0179

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

Timeline

  1. Published
  2. First public exploit (EDB-46781)

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46781 Linux - Missing Locking Between ELF coredump code and userfaultfd VMA Modification dos, 2019-04-30
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html referenced PoC, tagged "exploit" by a source, unverified
  • bugs.chromium.org https://bugs.chromium.org/p/project-zero/issues/detail?id=1790 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/152663/Linux-Missing-Lockdown.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
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.