USN-5259-1

Source
https://ubuntu.com/security/notices/USN-5259-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5259-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5259-1
Related
Published
2022-02-01T14:38:29.524042Z
Modified
2022-02-01T14:38:29.524042Z
Summary
cron vulnerabilities
Details

It was discovered that the postinst maintainer script in Cron unsafely handled file permissions during package install or update operations. An attacker could possibly use this issue to perform a privilege escalation attack. (CVE-2017-9525)

Florian Weimer discovered that Cron incorrectly handled certain memory operations during crontab file creation. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-9704)

It was discovered that Cron incorrectly handled user input during crontab file creation. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-9705)

It was discovered that Cron contained a use-after-free vulnerability in its forcerescanuser function. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-9706)

References

Affected packages

Ubuntu:Pro:16.04:LTS / cron

Package

Name
cron
Purl
pkg:deb/ubuntu/cron@3.0pl1-128ubuntu2+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0pl1-128ubuntu2+esm1

Affected versions

3.*

3.0pl1-127ubuntu1
3.0pl1-128ubuntu1
3.0pl1-128ubuntu2

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.0pl1-128ubuntu2+esm1",
            "binary_name": "cron"
        },
        {
            "binary_version": "3.0pl1-128ubuntu2+esm1",
            "binary_name": "cron-dbgsym"
        }
    ]
}