PT-2019-6260 · Debian+2 · Vixie Cron+2

Christian Kastner · Published 2019-03-10 · Updated 2022-05-06 · CVE-2019-9705

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Vixie Cron versions prior to 3.0pl1-133

Description The issue is related to a memory allocation problem in the cron daemon, allowing an attacker to cause a denial of service by consuming excessive memory. This can be achieved by creating a large crontab file, as the system accepts an unlimited number of lines.

Recommendations For Vixie Cron versions prior to 3.0pl1-133, update to the 3.0pl1-133 Debian package or later to resolve the issue. As a temporary workaround, consider restricting access to the crontab file to prevent malicious modifications.

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2022-06041

CVE-2019-9705

DLA-1723-1

DLA-2801-1

MGASA-2019-0157

OPENSUSE-SU-2019:1520-1

OPENSUSE-SU-2019_1520-1

SUSE-SU-2019:1389-1

SUSE-SU-2019:1389-2

SUSE-SU-2019:1990-1

USN-5259-1

USN-5259-2

Affected Products

Suse

Ubuntu

Vixie Cron

References · 42

• https://osv.dev/vulnerability/openSUSE-SU-2019:1520-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1723-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-9705 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5259-2 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0157.html · Security Note
• https://osv.dev/vulnerability/USN-5259-2 · Vendor Advisory
• https://salsa.debian.org/debian/cron/commit/26814a26 · Patch
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DU7HAUAQR4E4AEBPYLUV6FZ4PHKH6A2 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0157 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5259-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9525 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/6DU7HAUAQR4E4AEBPYLUV6FZ4PHKH6A2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-9705 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:1389-2 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-9705 · Vendor Advisory