Description
The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | sudo | 1.9.5-1 | — |
| Debian 13 | sudo | 1.9.5-1 | — |
| Debian 12 | sudo | 1.9.5-1 | — |
| Debian 10 | sudo | 1.8.27-1+deb10u4 | DLA-3181-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | sudo | 1.8.31-1ubuntu1.2 | USN-4705-1 |
| Ubuntu 18.04 LTS | sudo | 1.8.21p2-3ubuntu1.4 | USN-4705-1 |
| Ubuntu 16.04 LTS | sudo | 1.8.16-0ubuntu1.10 | USN-4705-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | sudo | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | sudo | 1.8.29-7.el8 | RHSA-2021:1723 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | sudo | 1.8.29-7.el8 | RLSA-2021:1723 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLES 15 SP1 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLES 15 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLES 12 SP5 | sudo | 1.8.27-4.6.1 | SUSE-SU-2021:0225-1 |
| SLES 12 SP4 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SLES 12 SP2 | sudo | 1.8.10p3-10.29.1 | SUSE-SU-2021:0232-1 |
| SLES for SAP 15 SP1 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLES for SAP 15 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLES for SAP 12 SP5 | sudo | 1.8.27-4.6.1 | SUSE-SU-2021:0225-1 |
| SLES for SAP 12 SP4 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SLES for SAP 12 SP3 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SLES for SAP 12 SP2 | sudo | 1.8.10p3-10.29.1 | SUSE-SU-2021:0232-1 |
| SLE HPC 15 SP1 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SLE HPC 15 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SUSE OpenStack Cloud Crowbar 9 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SUSE OpenStack Cloud Crowbar 8 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SUSE OpenStack Cloud 9 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SUSE OpenStack Cloud 8 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SUSE OpenStack Cloud 7 | sudo | 1.8.10p3-10.29.1 | SUSE-SU-2021:0232-1 |
| SUSE Manager Server 4.0 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SUSE Manager Retail Branch Server 4.0 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SUSE Manager Proxy 4.0 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SUSE HPE Helion OpenStack 8 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
| SUSE Enterprise Storage 6 | sudo | 1.8.22-4.15.1 | SUSE-SU-2021:0227-1 |
| SUSE Enterprise Storage 5 | sudo | 1.8.20p2-3.20.1 | SUSE-SU-2021:0226-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sudo | 1.9.7p2-1.4 | openSUSE-SU-2024:11413-1 |
| openSUSE Leap 15.2 | sudo | 1.8.22-lp152.8.6.1 | openSUSE-SU-2021:0170-1 |
| openSUSE Leap 15.1 | sudo | 1.8.22-lp151.5.12.1 | openSUSE-SU-2021:0169-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | sudo | 1.9.5-r0 | — |
| Alpine v3.23 | sudo | 1.9.5-r0 | — |
| Alpine v3.22 | sudo | 1.9.5-r0 | — |
| Alpine v3.21 | sudo | 1.9.5-r0 | — |
| Alpine v3.20 | sudo | 1.9.5-r0 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | sudo | 1.9.5-r0 | — |
| Alpine v3.18 | sudo | 1.9.5-r0 | — |
| Alpine v3.17 | sudo | 1.9.5-r0 | — |
| Alpine v3.16 | sudo | 1.9.5-r0 | — |
| Alpine v3.15 | sudo | 1.9.5-r0 | — |
| Alpine v3.14 | sudo | 1.9.5-r0 | — |
| Alpine v3.13 | sudo | 1.9.5-r0 | — |
| Alpine v3.12 | sudo | 1.9.5-r0 | — |
| Alpine v3.11 | sudo | 1.9.5p2-r0 | — |
| Alpine v3.10 | sudo | 1.9.5p2-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | sudo | 1.8.29-7.el8 | ELSA-2021-1723 |
Advisories 13
- WID-SEC-2025-0227 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- RHSA-2021:1723 Red Hat Security Advisory: sudo security and bug fix update Red Hat Security Advisories (RHSA) · Apr 30, 2026
- USN-4705-1 sudo vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3181-1 sudo - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1723 Low: sudo security and bug fix update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2021:0169-1 Security update for sudo SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0226-1 Security update for sudo SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0225-1 Security update for sudo SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0170-1 Security update for sudo SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11413-1 sudo-1.9.7p2-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0227-1 Security update for sudo SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0232-1 Security update for sudo SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2021-1723 Low: sudo security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
References
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23239
- https://www.sudo.ws/stable.html#1.9.5
- FEDORA-2021-324479472c vendor-advisory
- FEDORA-2021-234d14bfcc vendor-advisory
- GLSA-202101-33 vendor-advisory
- https://security.netapp.com/advisory/ntap-20210129-0010/
- [debian-lts-announce] 20221107 [SECURITY] [DLA 3181-1] sudo security update mailing-list