UBUNTU-CVE-2019-20044
- Source
- https://ubuntu.com/security/CVE-2019-20044
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20044.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-20044
- Upstream
- Downstream
- Related
- Published
- 2020-02-24T14:15:00Z
- Modified
- 2025-07-18T16:45:34Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Ubuntu - low
- Summary
- [none]
- Details
-
In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().
- References
Affected packages
Ubuntu:Pro:16.04:LTS / zsh
Package
- Name
- zsh
- Purl
- pkg:deb/ubuntu/zsh@5.1.1-1ubuntu2.3+esm1?arch=source&distro=esm-infra/xenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.1.1-1ubuntu2.3+esm1
Affected versions
5.*
5.1.1-1ubuntu1
5.1.1-1ubuntu2
5.1.1-1ubuntu2.1
5.1.1-1ubuntu2.2
5.1.1-1ubuntu2.3
Ecosystem specific
{
"binaries": [
{
"binary_name": "zsh",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-common",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-dbg",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-dbgsym",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-dev",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-doc",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-static",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
},
{
"binary_name": "zsh-static-dbgsym",
"binary_version": "5.1.1-1ubuntu2.3+esm1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
Ubuntu:18.04:LTS / zsh
Package
- Name
- zsh
- Purl
- pkg:deb/ubuntu/zsh@5.4.2-3ubuntu3.2?arch=source&distro=bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.4.2-3ubuntu3.2
Ecosystem specific
{
"binaries": [
{
"binary_name": "zsh",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-common",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-dbgsym",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-dev",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-doc",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-static",
"binary_version": "5.4.2-3ubuntu3.2"
},
{
"binary_name": "zsh-static-dbgsym",
"binary_version": "5.4.2-3ubuntu3.2"
}
],
"availability": "No subscription required"
}