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Fencer Intel
high 7.5

CVE-2019-16884 json

Incorrect Authorization in runc

published 7y ago modified last mo. also GHSA-fgv8-vj5c-2ppq , GO-2021-0085 , EUVD-2022-0981

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.

Patch / fix

  • go github.com/opencontainers/runc 1.0.0-rc8.0.20190930145003-cad42f6e0932
  • go github.com/opencontainers/selinux 1.3.1-0.20190929122143-5215b1806f52
  • runc Debian 14, Debian 13, Debian 12 1.0.0~rc9+dfsg1-1
  • golang-github-opencontainers-selinux Debian 14, Debian 13, Debian 12 1.3.0-2

debian advisories DEBIAN-CVE-2019-16884

  • runc Ubuntu 18.04 LTS 1.0.0~rc10-0ubuntu1~18.04.2
  • runc Ubuntu 20.04 LTS 1.0.0~rc8+git20190923.3e425f80-0ubuntu1
  • runc Ubuntu Pro 16.04 LTS 1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm2

ubuntu advisories UBUNTU-CVE-2019-16884

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

  • runc RHEL 8 1.0.0-61.rc8.module+el8.1.0+4873+4a24e241
  • podman RHEL 8 1.4.2-6.module+el8.1.0+4830+f49150d7
  • skopeo RHEL 8 1:0.1.37-6.module+el8.1.0+4876+e678a192
  • buildah RHEL 8 1.9.0-5.module+el8.1.0+4240+893c1ab8
  • toolbox RHEL 8 0.0.4-1.module+el8.1.0+4081+b29780af
  • oci-umount RHEL 8 2:2.3.4-2.git87f9237.module+el8.1.0+4081+b29780af
  • slirp4netns RHEL 8 0.3.0-4.module+el8.1.0+4306+1d917805
  • podman-tests RHEL 8 1.4.2-6.module+el8.1.0+4830+f49150d7

red hat advisories RHSA-2019:4269RHSA-2020:1234RHSA-2019:4074RHSA-2019:3940RHBA-2020:1232

  • runc SLE Module for Containers 12 1.0.0~rc93-16.8.1
  • docker SLE Module for Containers 12 20.10.6_ce-98.66.1
  • containerd SLE Module for Containers 12 1.4.4-16.38.1
  • golang-github-docker-libnetwork SLE Module for Containers 12 0.7.0.1+gitr2877_3eb39382bfa6-28.1
  • docker SLE Module for Containers 12 19.03.5_ce-98.51.1
  • containerd SLE Module for Containers 12 1.2.10-16.26.1
  • docker-runc SLE Module for Containers 12 1.0.0rc8+gitr3917_3e425f80a8c9-1.35.1
  • golang-github-docker-libnetwork SLE Module for Containers 15 SP1, SLE Module for Containers 15 0.7.0.1+gitr2877_3eb39382bfa6-4.18.1

suse advisories SUSE-SU-2021:1458-1SUSE-SU-2020:0065-1SUSE-SU-2020:0035-1SUSE-SU-2019:2810-1SUSE-SU-2019:2787-1SUSE-SU-2019:2786-1

  • runc openSUSE Tumbleweed 1.0.2-1.2
  • golang-github-docker-libnetwork openSUSE Leap 15.1 0.7.0.1+gitr2877_3eb39382bfa6-lp151.2.9.1
  • docker openSUSE Leap 15.1 19.03.5_ce-lp151.2.15.1
  • containerd openSUSE Leap 15.1 1.2.10-lp151.2.9.1
  • docker-runc openSUSE Leap 15.1 1.0.0rc8+gitr3917_3e425f80a8c9-lp151.3.12.1
  • docker-runc openSUSE Leap 15.1 1.0.0rc8+gitr3826_425e105d5a03-lp151.3.9.1
  • docker-runc openSUSE Leap 15.0 1.0.0rc8+gitr3826_425e105d5a03-lp150.5.28.1

opensuse advisories openSUSE-SU-2024:11358-1openSUSE-SU-2020:0045-1openSUSE-SU-2019:2434-1openSUSE-SU-2019:2418-1

  • oci-umount AlmaLinux 8 2:2.3.4-2.git87f9237.module_el8.5.0+119+9a9ec082
  • oci-umount AlmaLinux 8 2:2.3.4-2.git87f9237.module_el8.4.0+2496+12421f43
  • oci-umount AlmaLinux 8 2:2.3.4-2.git87f9237.module_el8.3.0+2044+12421f43
  • oci-systemd-hook AlmaLinux 8 1:0.1.15-2.git2d0b8a3.module_el8.5.0+119+9a9ec082
  • oci-systemd-hook AlmaLinux 8 1:0.1.15-2.git2d0b8a3.module_el8.4.0+2496+12421f43
  • oci-systemd-hook AlmaLinux 8 1:0.1.15-2.git2d0b8a3.module_el8.3.0+2044+12421f43

almalinux advisories ALSA-2019:4269

  • oci-umount Rocky Linux 8 2:2.3.4-2.git87f9237.module+el8.4.0+557+48ba8b2f
  • oci-systemd-hook Rocky Linux 8 1:0.1.15-2.git2d0b8a3.module+el8.4.0+557+48ba8b2f

rocky linux advisories RLSA-2019:4269

  • runc Alpine 3.11 1.0.0_rc9
  • runc Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 1.0.0_rc9-r0
  • containerd Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 1.3.0-r0

alpine advisories ALPINE-CVE-2019-16884

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2019-16884 in your dependencies? 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-2019-16884 updated cvss 6.5

runc: AppArmor/SELinux bypass with malicious image that specifies a volume at /proc

  • Red Hat Enterprise Linux 8 runc Red Hat OpenShift Container Platform 3.9 runc
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 Extras runc 1.0.0-67.rc10.el7_8, docker 1.13.1-161.git64e9980.el7_8, docker-client 1.13.1-161.git64e9980.el7_8, docker-common 1.13.1-161.git64e9980.el7_8, docker-logrotate 1.13.1-161.git64e9980.el7_8, docker-lvm-plugin 1.13.1-161.git64e9980.el7_8, +3 more
    fixed: vendor fix RHSA-2020:1234
  • Red Hat Enterprise Linux AppStream (v. 8) podman 1.4.2-6.module+el8.1.0+4830+f49150d7, buildah 1.9.0-5.module+el8.1.0+4240+893c1ab8, skopeo 0.1.37-6.module+el8.1.0+4876+e678a192, toolbox 0.0.4-1.module+el8.1.0+4081+b29780af, runc 1.0.0-61.rc8.module+el8.1.0+4873+4a24e241, cockpit-podman 4-1.module+el8.1.0+4081+b29780af, +14 more
    fixed: vendor fix RHSA-2019:4269
  • Red Hat OpenShift Container Platform 4.1 runc 1.0.0-62.rc8.rhaos4.1.git3cbe540.el8
    fixed: vendor fix RHSA-2019:3940
  • Red Hat OpenShift Container Platform 4.2 runc 1.0.0-63.rc8.el8
    fixed: vendor fix RHSA-2019:4074

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

4.41% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/opencontainers/runc/issues/2128 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/opencontainers/runc
<1.0.0-rc8.0.20190930145003-cad42f6e0932
1.0.0-rc8.0.20190930145003-cad42f6e0932
go github.com/opencontainers/selinux
<1.3.1-0.20190929122143-5215b1806f52
1.3.1-0.20190929122143-5215b1806f52

Classification

Weakness
Technology feeds

References

Sources

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