7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
Low
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
13.3%
Debian LTS Advisory DLA-3369-1 [email protected]
https://www.debian.org/lts/security/ Sylvain Beucler
March 27, 2023 https://wiki.debian.org/LTS
Package : runc
Version : 1.0.0~rc6+dfsg1-3+deb10u2
CVE ID : CVE-2019-16884 CVE-2019-19921 CVE-2021-30465 CVE-2022-29162
CVE-2023-27561
Debian Bug : 942026 988768
Multiple vulnerabilities were discovered in runc, the Open Container
Project runtime, which is often used with virtualization environments
such as Docker. Malicious Docker images or OCI bundles could breach
isolation.
CVE-2019-16884
runc, as used in Docker and other products, allows AppArmor and
SELinux restriction bypass because libcontainer/rootfs_linux.go
incorrectly checks mount targets, and thus a malicious Docker
image can mount over a /proc directory.
CVE-2019-19921
runc 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.)
CVE-2021-30465
runc allows a Container Filesystem Breakout via Directory
Traversal. To exploit the vulnerability, an attacker must be able
to create multiple containers with a fairly specific mount
configuration. The problem occurs via a symlink-exchange attack
that relies on a race condition.
CVE-2022-29162
`runc exec --cap` created processes with non-empty inheritable
Linux process capabilities, creating an atypical Linux environment
and enabling programs with inheritable file capabilities to
elevate those capabilities to the permitted set during
execve(2). This bug did not affect the container security sandbox
as the inheritable set never contained more capabilities than were
included in the container's bounding set.
CVE-2023-27561
CVE-2019-19921 was re-introduced by the fix for CVE-2021-30465.
For Debian 10 buster, this problem has been fixed in version
1.0.0~rc6+dfsg1-3+deb10u2.
We recommend that you upgrade your runc packages.
For the detailed security status of runc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/runc
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | i386 | runc-dbgsym | < 1.0.0~rc93+ds1-5+deb11u2 | runc-dbgsym_1.0.0~rc93+ds1-5+deb11u2_i386.deb |
Debian | 10 | all | runc | < 1.0.0~rc6+dfsg1-3+deb10u2 | runc_1.0.0~rc6+dfsg1-3+deb10u2_all.deb |
Debian | 11 | s390x | runc | < 1.0.0~rc93+ds1-5+deb11u2 | runc_1.0.0~rc93+ds1-5+deb11u2_s390x.deb |
Debian | 11 | amd64 | runc | < 1.0.0~rc93+ds1-5+deb11u2 | runc_1.0.0~rc93+ds1-5+deb11u2_amd64.deb |
Debian | 11 | i386 | runc | < 1.0.0~rc93+ds1-5+deb11u2 | runc_1.0.0~rc93+ds1-5+deb11u2_i386.deb |
Debian | 10 | amd64 | runc | < 1.0.0~rc6+dfsg1-3+deb10u2 | runc_1.0.0~rc6+dfsg1-3+deb10u2_amd64.deb |
Debian | 11 | amd64 | runc-dbgsym | < 1.0.0~rc93+ds1-5+deb11u2 | runc-dbgsym_1.0.0~rc93+ds1-5+deb11u2_amd64.deb |
Debian | 11 | armhf | runc | < 1.0.0~rc93+ds1-5+deb11u2 | runc_1.0.0~rc93+ds1-5+deb11u2_armhf.deb |
Debian | 11 | armel | runc-dbgsym | < 1.0.0~rc93+ds1-5+deb11u2 | runc-dbgsym_1.0.0~rc93+ds1-5+deb11u2_armel.deb |
Debian | 11 | ppc64el | runc | < 1.0.0~rc93+ds1-5+deb11u2 | runc_1.0.0~rc93+ds1-5+deb11u2_ppc64el.deb |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
Low
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
13.3%