CVE-2019-19921: canonical ubuntu_linux
Vulnerability summary
CVE-2019-19921 is a high (CVSS 7.0) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37.6% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 7Timeline
- 12-02-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)
CVSS metrics
9 scores · 8 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · GoEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:UDiffers
- OSV · ChainguardEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · AlpineEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.43% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat4 products
- openshift_container_platform4.1 | 4.2
- runc< 0:1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8 | < 0:1.0.0-63.rc8.rhaos4.1.git3cbe540.el8_0 | < 0:1.0.0-66.rc8.el7_7 | < 0:1.0.0-66.rc10.rhaos4.3.el7_8
- runc-debuginfo< 0:1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8 | < 0:1.0.0-63.rc8.rhaos4.1.git3cbe540.el8_0 | < 0:1.0.0-66.rc8.el7_7 | < 0:1.0.0-66.rc10.rhaos4.3.el7_8
- runc-debugsource< 0:1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8 | < 0:1.0.0-63.rc8.rhaos4.1.git3cbe540.el8_0
Suse3 products
- docker-runc&distro=SUSE Linux Enterprise Module for Containers 12< 1.0.0rc8+gitr3917_3e425f80a8c9-1.40.1
- docker-runc&distro=SUSE Linux Enterprise Module for Containers 15 SP1< 1.0.0rc8+gitr3917_3e425f80a8c9-6.32.1
- runc&distro=SUSE Linux Enterprise Module for Containers 15 SP1< 1.0.0~rc10-1.9.1
Alpine2 products
- containerd< 1.3.3-r0
- runc< 1.0.0_rc10 | < 1.0.0_rc10-r0
Chainguard2 products
- runcAll versions (No fix recorded)
- runc-docAll versions (No fix recorded)
Debian2 products
- runc< 1.0.0~rc10+dfsg1-1
- debian_linuxEOL9.0 | 10.0
Opensuse2 products
- leapEOL15.1
- docker-runc&distro=openSUSE Leap 15.1< 1.0.0rc8+gitr3917_3e425f80a8c9-lp151.3.15.1
Wolfi2 products
- runcAll versions (No fix recorded)
- runc-docAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.10
Github.com/opencontainers1 product
- runc< 1.0.0-rc9.0.20200122160610-2fc03cc11c77
Linuxfoundation1 product
- runc≤ 0.1.1 | 1.0.0:rc1 | 1.0.0:rc2 | 1.0.0:rc3 | 1.0.0:rc4 | 1.0.0:rc5 | 1.0.0:rc6 | 1.0.0:rc7 | 1.0.0:rc8 | 1.0.0:rc9
Mageia1 product
- opencontainers-runc< 1.0.0-0.rc10.3.1.mga7
Ubuntu1 product
- runc< 1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4 | < 1.0.0~rc10-0ubuntu1~18.04.2 | < 1.0.0~rc10-0ubuntu1
12 vendors · 22 products
References
51 links- lists.opensuse.org/opensuse-security-announce/2020-02/msg00018.htmlVendor AdvisoryAdvisoryWEBBroken LinkMailing ListThird Party Advisory
Show all 51 references
- lists.opensuse.org/archives/…Advisory