Vulnerability in Freebsd

CVE-2011-1075

FreeBSD's crontab calculates the MD5 sum of the previous and new cronjob to determine if any changes have been made before copying the new version in. In particular, it uses the MD5File() function, which takes a pathname as an argument, and is called with euid 0. A race condition in this process may lead to an arbitrary MD5 comparison regardless of the read permissions.

Vulnerability class: Race Condition

EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

  • Freebsd
  • N/a Freebsd/crontab — versions unknown

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2011-1075?
CVE-2011-1075 is a low-severity vulnerability in Freebsd, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 3.7/10. Published 2021-10-19.
How severe is CVE-2011-1075?
Low severity. CVSS v3 base score is 3.7 out of 10.