In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 6.7 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | 0.8 | 5.9 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-59,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| cron_project | cron | * |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (daemon crash) via a large crontab file because the calloc return value is not checked.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 1.8 | 3.6 |
CVSS 2.0
Severity: LOW
Problem Type: CWE-252,CWE-476,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| cron_project | cron | * |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 29 |
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 1.8 | 3.6 |
CVSS 2.0
Severity: LOW
Problem Type: CWE-770,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| cron_project | cron | * |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| fedoraproject | fedora | 29 |