CVE catalog
CVE-2020-14367
chrony: CVE-2020-14367
- Severity
- Medium · CVSS 6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
A flaw was found in chrony versions before 3.5.1 when creating the PID file under the /var/run/chrony folder. The file is created during chronyd startup while still running as the root user, and when it's opened for writing, chronyd does not check for an existing symbolic link with the same file name. This flaw allows an attacker with privileged access to create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service due to the path traversal.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | chrony | sid | 4.9-2 | fixed |
| Debian | chrony | forky | 4.9-2 | fixed |
| Debian | chrony | trixie | 4.6.1-3+deb13u2 | fixed |
| Debian | chrony | bookworm | 4.3-2+deb12u3 | fixed |
| Alpine | chrony | 3.10 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.11 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.12 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.13 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.14 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.15 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.16 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.17 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.18 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.19 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.20 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.21 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.22 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.23 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.24 | 3.5.1-r0 | fixed |
| Alpine | chrony | 3.9 | 3.4-r2 | fixed |
| Ubuntu | chrony | 18.04 | 3.1-5 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-1build1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-1ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2ubuntu2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.4 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.5 | fixed |
| Ubuntu | chrony | 20.04 | 3.5-2ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-2ubuntu3 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-4ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-5ubuntu1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu3 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu5 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6.1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6.2 | fixed |
| Suse | augeas | linux enterprise micro 5.2 | 1.10.1-3.9.1 | fixed |
| Opensuse | chrony | tumbleweed | 4.1-5.2 | fixed |
| Ubuntu | chrony | pro | 1.26-4 | vulnerable |
| Ubuntu | chrony | pro | 1.29-1 | vulnerable |
| Ubuntu | chrony | pro | 1.29-1ubuntu0.1 | vulnerable |
| Ubuntu | chrony | pro | 1.29-1ubuntu0.1+esm1 | vulnerable |
| Ubuntu | chrony | 16.04 | 1.30-2 | vulnerable |
| Ubuntu | chrony | 16.04 | 1.31.1-2 | vulnerable |
| Ubuntu | chrony | 16.04 | 2.1.1-1 | vulnerable |
| Ubuntu | chrony | 16.04 | 2.1.1-1ubuntu0.1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.1-5 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-1build1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-1ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2ubuntu2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-2ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu3 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.1 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.2 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.4 | vulnerable |
| Ubuntu | chrony | 18.04 | 3.2-4ubuntu4.5 | fixed |
| Ubuntu | chrony | 20.04 | 3.5-2ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-2ubuntu3 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-4ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-5ubuntu1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu2 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu3 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu5 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6.1 | vulnerable |
| Ubuntu | chrony | 20.04 | 3.5-6ubuntu6.2 | fixed |
| Suse | chrony | hpe helion openstack 8 | 4.1-5.9.1 | fixed |
| Suse | chrony | openstack cloud 8 | 4.1-5.9.1 | fixed |
| Suse | chrony | openstack cloud 9 | 4.1-5.9.1 | fixed |
| Suse | chrony | openstack cloud crowbar 8 | 4.1-5.9.1 | fixed |
| Suse | chrony | openstack cloud crowbar 9 | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server for sap applications 12 sp3 | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server for sap applications 12 sp4 | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server 12 sp2-bcl | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server 12 sp3-ltss | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server 12 sp3-bcl | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server 12 sp4-ltss | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server 12 sp5 | 4.1-5.9.1 | fixed |
| Suse | chrony | linux enterprise server for sap applications 12 sp5 | 4.1-5.9.1 | fixed |
| Opensuse | augeas | leap 15.3 | 1.10.1-3.9.1 | fixed |
| Opensuse | chrony | leap 15.3 | 4.1-150300.16.3.1 | fixed |
| Suse | augeas | linux enterprise installer updates 15 sp3 | 1.10.1-3.9.1 | fixed |
| Suse | augeas | linux enterprise module for basesystem 15 sp3 | 1.10.1-3.9.1 | fixed |
| Suse | chrony | linux enterprise module for basesystem 15 sp3 | 4.1-150300.16.3.1 | fixed |
| Suse | augeas | linux enterprise real time 15 sp2 | 1.10.1-3.9.1 | fixed |
| Suse | augeas | linux enterprise micro 5.0 | 1.10.1-3.9.1 | fixed |
| Suse | augeas | linux enterprise micro 5.1 | 1.10.1-3.9.1 | fixed |
| Suse | chrony | linux enterprise micro 5.1 | 4.1-150300.16.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | chrony | source | sid | 3.5.1-1 | unimportant | Not reported | Not reported |
| Debian | chrony | source | forky | 3.5.1-1 | unimportant | Not reported | Not reported |
| Debian | chrony | source | trixie | 3.5.1-1 | unimportant | Not reported | Not reported |
| Debian | chrony | source | bookworm | 3.5.1-1 | unimportant | Not reported | Not reported |
| Alpine | chrony | apk | 3.10 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.11 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.12 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.13 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.14 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.15 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.16 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.17 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.18 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.19 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.20 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.21 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.22 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.23 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.24 | 3.5.1-r0 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Alpine | chrony | apk | 3.9 | 3.4-r2 | Not reported | ALPINE-CVE-2020-14367 | Not reported |
| Ubuntu | chrony | deb | 18.04 | 3.2-4ubuntu4.5 | Not reported | USN-4475-1 | Not reported |
| Ubuntu | chrony | deb | 20.04 | 3.5-6ubuntu6.2 | Not reported | USN-4475-1 | Not reported |
| Suse | augeas | rpm | linux enterprise micro 5.2 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-2 | Not reported |
| Opensuse | chrony | rpm | tumbleweed | 4.1-5.2 | Not reported | OPENSUSE-SU-2024:10682-1 | Not reported |
| Ubuntu | chrony | deb | 18.04 | 3.2-4ubuntu4.5 | Not reported | UBUNTU-CVE-2020-14367 | Not reported |
| Ubuntu | chrony | deb | 20.04 | 3.5-6ubuntu6.2 | Not reported | UBUNTU-CVE-2020-14367 | Not reported |
| Suse | chrony | rpm | hpe helion openstack 8 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | openstack cloud 8 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | openstack cloud 9 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | openstack cloud crowbar 8 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | openstack cloud crowbar 9 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server for sap applications 12 sp3 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server for sap applications 12 sp4 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server 12 sp2-bcl | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server 12 sp3-ltss | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server 12 sp3-bcl | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server 12 sp4-ltss | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server 12 sp5 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Suse | chrony | rpm | linux enterprise server for sap applications 12 sp5 | 4.1-5.9.1 | Not reported | SUSE-SU-2021:4147-1 | Not reported |
| Opensuse | augeas | rpm | leap 15.3 | 1.10.1-3.9.1 | Not reported | OPENSUSE-SU-2022:0845-1 | Not reported |
| Opensuse | chrony | rpm | leap 15.3 | 4.1-150300.16.3.1 | Not reported | OPENSUSE-SU-2022:0845-1 | Not reported |
| Suse | augeas | rpm | linux enterprise installer updates 15 sp3 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | augeas | rpm | linux enterprise module for basesystem 15 sp3 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | chrony | rpm | linux enterprise module for basesystem 15 sp3 | 4.1-150300.16.3.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | augeas | rpm | linux enterprise real time 15 sp2 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | augeas | rpm | linux enterprise micro 5.0 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | augeas | rpm | linux enterprise micro 5.1 | 1.10.1-3.9.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
| Suse | chrony | rpm | linux enterprise micro 5.1 | 4.1-150300.16.3.1 | Not reported | SUSE-SU-2022:0845-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [chrony-pool-empty]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
4.1-5.2Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony-pool-openSUSE]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
4.1-5.2Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony-pool-suse]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
4.1-5.2Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony]Fixed
Source package: [chrony]
Details (1)
4.9-1.1· x86_64 · tumbleweedFixed · Fixed:
4.1-5.2dsa · chrony · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [chrony]Fixed
Details (2)
4.3-2+deb12u3· amd64 · bookwormFixed · Fixed:
3.5.1-1dsa · chrony · debian · bookworm; dsa · chrony · debian · 12
4.3-2+deb12u3· arm64 · bookwormFixed · Fixed:
3.5.1-1dsa · chrony · debian · bookworm; dsa · chrony · debian · 12
[Debian 13 (Trixie)]
- [chrony]Fixed
Details (2)
4.6.1-3+deb13u2· amd64 · trixieFixed · Fixed:
3.5.1-1dsa · chrony · debian · 13
4.6.1-3+deb13u2· arm64 · trixieFixed · Fixed:
3.5.1-1dsa · chrony · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_4147-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2020-14367]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-14367]
- [https://osv.dev/vulnerability/SUSE-SU-2021:4147-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:0845-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:0845-2]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-14367]
- [https://osv.dev/vulnerability/USN-4475-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2022:0845-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:10682-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-14367]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-14367.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]