USN-5259-1

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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"
        }
    ]
}