CVE catalog

CVE-2019-19234

sudo affected and fixed versions

In Sudo through 1.8.29, the fact that a user has been blocked (e.g., by using the ! character in the shadow file instead of a password hash) is not considered, allowing an attacker (who has access to a Runas ALL sudoer account) to impersonate any blocked user. NOTE: The software maintainer believes that this CVE is not valid. Disabling local password authentication for a user is not the same as disabling all access to that user--the user may still be able to login via other means (ssh key, kerberos, etc). Both the Linux shadow(5) and passwd(1) manuals are clear on this. Indeed it is a valid use case to have local accounts that are _only_ accessible via sudo and that cannot be logged into with a password. Sudo 1.8.30 added an optional setting to check the _shell_ of the target user (not the encrypted password!) against the contents of /etc/shells but that is not the same thing as preventing access to users with an invalid password hash

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Dec 19, 2019, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 3.17% · Oct 27, 2026

Projects and upstream resources

[sudo][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debiantrixie	sudo	`1.9.16p2-3+deb13u2`	Fixed	[CVE-2019-19234]
Debiansid	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debiansid	sudo	`1.9.17p2-9`	Fixed	[CVE-2019-19234]
Debianforky	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debianforky	sudo	`1.9.17p2-9`	Fixed	[CVE-2019-19234]
Debianbookworm-security	sudo	`1.9.13p3-1+deb12u2`	Fixed	[CVE-2019-19234]
Debianbookworm	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debianbookworm	sudo	`1.9.13p3-1+deb12u4`	Fixed	[CVE-2019-19234]

Showing 9 fix observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	sudo	`1.8.31-1`	UnknownSource applicability is not established	Provider not reported
Debianbookworm	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debianbookworm	sudo	`1.9.13p3-1+deb12u4`	Fixed	[CVE-2019-19234]
Debianbookworm-security	sudo	`1.9.13p3-1+deb12u2`	Fixed	[CVE-2019-19234]
Debianforky	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debianforky	sudo	`1.9.17p2-9`	Fixed	[CVE-2019-19234]
Debiansid	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debiansid	sudo	`1.9.17p2-9`	Fixed	[CVE-2019-19234]
Debiantrixie	sudo	`1.8.31-1`	FixedDistribution-reported fixed boundary	[CVE-2019-19234]
Debiantrixie	sudo	`1.9.16p2-3+deb13u2`	Fixed	[CVE-2019-19234]
Ubuntu20.04	sudo	`1.8.27-1ubuntu4`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-19234]Sep 8, 2025, 4:45:43 PM UTC
Ubuntu20.04	sudo	`1.8.29-1ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-19234]Sep 8, 2025, 4:45:43 PM UTC
Ubuntu20.04	sudo	`1.8.31-1ubuntu1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-19234]Sep 8, 2025, 4:45:43 PM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "sudo",
      "status": "fixed",
      "release": "sid",
      "version": "1.9.17p2-9"
    },
    {
      "name": "sudo",
      "status": "fixed",
      "release": "forky",
      "version": "1.9.17p2-9"
    },
    {
      "name": "sudo",
      "status": "fixed",
      "release": "trixie",
      "version": "1.9.16p2-3+deb13u2"
    },
    {
      "name": "sudo",
      "status": "fixed",
      "release": "bookworm",
      "version": "1.9.13p3-1+deb12u4"
    },
    {
      "name": "sudo",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "1.9.13p3-1+deb12u2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 947225,
      "name": "sudo",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "1.8.31-1"
    },
    {
      "bug": 947225,
      "name": "sudo",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": "1.8.31-1"
    },
    {
      "bug": 947225,
      "name": "sudo",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "1.8.31-1"
    },
    {
      "bug": 947225,
      "name": "sudo",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "1.8.31-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "sudo",
      "fixed_version": "1.8.31-1",
      "applicability_unknown": true
    },
    {
      "name": "sudo",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.31-1ubuntu1"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "1.8.27-1ubuntu4",
        "1.8.29-1ubuntu1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-19234",
      "fixed_version": "1.8.31-1ubuntu1",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2019-19234",
      "provider_updated_at": "2025-09-08T16:45:43Z",
      "applicability_unknown": true
    }
  ]
}

[Debian bug #947225]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libnss-sudo]Unknown
Source package: [sudo]
Details (4)
- 1.9.13p3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
[sudo]Unknown
Details (4)
- 1.9.13p3-1+deb12u4 · amd64 · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u4 · arm64 · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
[sudo-ldap]Unknown
Source package: [sudo]
Details (4)
- 1.9.13p3-1+deb12u4 · amd64 · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u4 · arm64 · bookworm
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12
- 1.9.13p3-1+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · bookworm; dsa · sudo · debian · 12

[Debian 13 (Trixie)]

[libnss-sudo]Unknown
Source package: [sudo]
Details (2)
- 1.9.16p2-3+deb13u2 · all · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13
- 1.9.16p2-3+deb13u2 · all · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13
[sudo]Unknown
Details (2)
- 1.9.16p2-3+deb13u2 · amd64 · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13
- 1.9.16p2-3+deb13u2 · arm64 · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13
[sudo-ldap]Unknown
Source package: [sudo]
Details (2)
- 1.9.16p2-3+deb13u2 · amd64 · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13
- 1.9.16p2-3+deb13u2 · arm64 · trixie
  Fixed · Fixed: 1.8.31-1
  dsa · sudo · debian · 13

Observed: Oct 23, 2026, 5:42:49 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]