UBUNTU-CVE-2020-16127

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Source
https://ubuntu.com/security/CVE-2020-16127
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-16127.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-16127
Upstream
  • CVE-2020-16127
Downstream
Related
Published
2020-11-03T00:00:00Z
Modified
2025-09-08T16:46:15Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 2.8 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location.

References

Affected packages

Ubuntu:20.04:LTS / accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice@0.6.55-0ubuntu12~20.04.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.55-0ubuntu12~20.04.4

Affected versions

0.*

0.6.55-0ubuntu10
0.6.55-0ubuntu11
0.6.55-0ubuntu12~20.04.1
0.6.55-0ubuntu12~20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "libaccountsservice-dev",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        }
    ],
    "availability": "No subscription required"
}