CVE catalog
CVE-2019-18634
sudo: CVE-2019-18634
- Severity
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 19.28% · Oct 25, 2026
In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
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 | sudo | sid | 1.9.17p2-9 | fixed |
| Debian | sudo | forky | 1.9.17p2-9 | fixed |
| Debian | sudo | trixie | 1.9.16p2-3+deb13u2 | fixed |
| Debian | sudo | bookworm | 1.9.13p3-1+deb12u4 | fixed |
| Debian | sudo | bookworm-security | 1.9.13p3-1+deb12u2 | fixed |
| Alpine | sudo | 3.10 | 1.8.27-r2 | fixed |
| Alpine | sudo | 3.11 | 1.8.29-r2 | fixed |
| Alpine | sudo | 3.12 | 1.8.31-r0 | fixed |
| Alpine | sudo | 3.13 | 1.8.31-r0 | fixed |
| Alpine | sudo | 3.14 | 1.8.31-r0 | fixed |
| Alpine | sudo | 3.15 | 1.8.31-r0 | fixed |
| Alpine | sudo | 3.8 | 1.8.23-r4 | fixed |
| Alpine | sudo | 3.9 | 1.8.25_p1-r3 | fixed |
| Ubuntu | sudo | 16.04 | 1.8.12-1ubuntu3 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.1 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.2 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.3 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.4 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.5 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.6 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.7 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.8 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.9 | fixed |
| Ubuntu | sudo | 18.04 | 1.8.20p2-1ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-2ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1.1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1.2 | fixed |
| Ubuntu | sudo | pro | 1.8.6p3-0ubuntu3 | vulnerable |
| Ubuntu | sudo | pro | 1.8.8-2ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.8-2ubuntu2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p4-1ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p4-1ubuntu2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.3 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.4 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm3 | fixed |
| Suse | sudo | openstack cloud 7 | 1.8.10p3-10.26.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 12 sp2 | 1.8.10p3-10.26.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp2-ltss | 1.8.10p3-10.26.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp2-bcl | 1.8.10p3-10.26.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 12 sp1 | 1.8.10p3-2.32.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp1-ltss | 1.8.10p3-2.32.1 | fixed |
| Suse | sudo | linux enterprise module for basesystem 15 | 1.8.22-4.9.1 | fixed |
| Suse | sudo | linux enterprise module for basesystem 15 sp1 | 1.8.22-4.9.1 | fixed |
| Suse | sudo | linux enterprise high performance computing 15-espos | 1.8.22-4.9.1 | fixed |
| Suse | sudo | linux enterprise high performance computing 15-ltss | 1.8.22-4.9.1 | fixed |
| Suse | sudo | linux enterprise server 15-ltss | 1.8.22-4.9.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 15 | 1.8.22-4.9.1 | fixed |
| Opensuse | sudo | leap 15.1 | 1.8.22-lp151.5.6.1 | fixed |
| Suse | sudo | linux enterprise software development kit 12 sp5 | 1.8.27-4.3.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp5 | 1.8.27-4.3.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 12 sp5 | 1.8.27-4.3.1 | fixed |
| Suse | sudo | hpe helion openstack 8 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | openstack cloud 8 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | openstack cloud crowbar 8 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise desktop 12 sp4 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 12 sp3 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise software development kit 12 sp4 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp3-ltss | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp3-bcl | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise server 12 sp4 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | linux enterprise server for sap applications 12 sp4 | 1.8.20p2-3.17.1 | fixed |
| Suse | sudo | enterprise storage 5 | 1.8.20p2-3.17.1 | fixed |
| Ubuntu | sudo | pro | 1.8.6p3-0ubuntu3 | vulnerable |
| Ubuntu | sudo | pro | 1.8.8-2ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.8-2ubuntu2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p4-1ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p4-1ubuntu2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.3 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.4 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm1 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm2 | vulnerable |
| Ubuntu | sudo | pro | 1.8.9p5-1ubuntu1.5+esm3 | fixed |
| Ubuntu | sudo | 16.04 | 1.8.12-1ubuntu3 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.1 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.2 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.3 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.4 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.5 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.6 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.7 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.8 | vulnerable |
| Ubuntu | sudo | 16.04 | 1.8.16-0ubuntu1.9 | fixed |
| Ubuntu | sudo | 18.04 | 1.8.20p2-1ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-2ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1.1 | vulnerable |
| Ubuntu | sudo | 18.04 | 1.8.21p2-3ubuntu1.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | sudo | source | sid | 1.8.31-1 | not yet assigned | Not reported | [950371] |
| Debian | sudo | source | forky | 1.8.31-1 | not yet assigned | Not reported | [950371] |
| Debian | sudo | source | trixie | 1.8.31-1 | not yet assigned | Not reported | [950371] |
| Debian | sudo | source | bookworm | 1.8.31-1 | not yet assigned | Not reported | [950371] |
| Alpine | sudo | apk | 3.10 | 1.8.27-r2 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.11 | 1.8.29-r2 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.12 | 1.8.31-r0 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.13 | 1.8.31-r0 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.14 | 1.8.31-r0 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.15 | 1.8.31-r0 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.8 | 1.8.23-r4 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Alpine | sudo | apk | 3.9 | 1.8.25_p1-r3 | Not reported | ALPINE-CVE-2019-18634 | Not reported |
| Ubuntu | sudo | deb | 16.04 | 1.8.16-0ubuntu1.9 | Not reported | USN-4263-1 | Not reported |
| Ubuntu | sudo | deb | 18.04 | 1.8.21p2-3ubuntu1.2 | Not reported | USN-4263-1 | Not reported |
| Ubuntu | sudo | deb | pro | 1.8.9p5-1ubuntu1.5+esm3 | Not reported | USN-4263-2 | Not reported |
| Suse | sudo | rpm | openstack cloud 7 | 1.8.10p3-10.26.1 | Not reported | SUSE-SU-2020:0407-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 12 sp2 | 1.8.10p3-10.26.1 | Not reported | SUSE-SU-2020:0407-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp2-ltss | 1.8.10p3-10.26.1 | Not reported | SUSE-SU-2020:0407-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp2-bcl | 1.8.10p3-10.26.1 | Not reported | SUSE-SU-2020:0407-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 12 sp1 | 1.8.10p3-2.32.1 | Not reported | SUSE-SU-2020:0390-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp1-ltss | 1.8.10p3-2.32.1 | Not reported | SUSE-SU-2020:0390-1 | Not reported |
| Suse | sudo | rpm | linux enterprise module for basesystem 15 | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Suse | sudo | rpm | linux enterprise module for basesystem 15 sp1 | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Suse | sudo | rpm | linux enterprise high performance computing 15-espos | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Suse | sudo | rpm | linux enterprise high performance computing 15-ltss | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 15-ltss | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 15 | 1.8.22-4.9.1 | Not reported | SUSE-SU-2020:0408-1 | Not reported |
| Opensuse | sudo | rpm | leap 15.1 | 1.8.22-lp151.5.6.1 | Not reported | OPENSUSE-SU-2020:0244-1 | Not reported |
| Suse | sudo | rpm | linux enterprise software development kit 12 sp5 | 1.8.27-4.3.1 | Not reported | SUSE-SU-2020:0409-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp5 | 1.8.27-4.3.1 | Not reported | SUSE-SU-2020:0409-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 12 sp5 | 1.8.27-4.3.1 | Not reported | SUSE-SU-2020:0409-1 | Not reported |
| Suse | sudo | rpm | hpe helion openstack 8 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | openstack cloud 8 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | openstack cloud crowbar 8 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise desktop 12 sp4 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 12 sp3 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise software development kit 12 sp4 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp3-ltss | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp3-bcl | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server 12 sp4 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | linux enterprise server for sap applications 12 sp4 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Suse | sudo | rpm | enterprise storage 5 | 1.8.20p2-3.17.1 | Not reported | SUSE-SU-2020:0406-1 | Not reported |
| Ubuntu | sudo | deb | pro | 1.8.9p5-1ubuntu1.5+esm3 | Not reported | UBUNTU-CVE-2019-18634 | Not reported |
| Ubuntu | sudo | deb | 16.04 | 1.8.16-0ubuntu1.9 | Not reported | UBUNTU-CVE-2019-18634 | Not reported |
| Ubuntu | sudo | deb | 18.04 | 1.8.21p2-3ubuntu1.2 | Not reported | UBUNTU-CVE-2019-18634 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnss-sudo]Fixed
Source package: [sudo]
Details (4)
1.9.13p3-1+deb12u4· all · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u4· all · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- [sudo]Fixed
Details (4)
1.9.13p3-1+deb12u4· amd64 · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u4· arm64 · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- [sudo-ldap]Fixed
Source package: [sudo]
Details (4)
1.9.13p3-1+deb12u4· amd64 · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u4· arm64 · bookwormFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
1.9.13p3-1+deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.8.31-1dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
[Debian 13 (Trixie)]
- [libnss-sudo]Fixed
Source package: [sudo]
Details (2)
1.9.16p2-3+deb13u2· all · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
1.9.16p2-3+deb13u2· all · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
- [sudo]Fixed
Details (2)
1.9.16p2-3+deb13u2· amd64 · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
1.9.16p2-3+deb13u2· arm64 · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
- [sudo-ldap]Fixed
Source package: [sudo]
Details (2)
1.9.16p2-3+deb13u2· amd64 · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
1.9.16p2-3+deb13u2· arm64 · trixieFixed · Fixed:
1.8.31-1dsa · sudo · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2020:0487]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_0487.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-18634]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-18634]
- [https://osv.dev/vulnerability/DLA-2094-1]
- [https://osv.dev/vulnerability/DSA-4614-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0390-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0406-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0407-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0408-1]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0409-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-18634]
- [https://osv.dev/vulnerability/USN-4263-1]
- [https://osv.dev/vulnerability/USN-4263-2]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0244-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-18634]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]