QID 198440

Date Published: 2021-08-02

QID 198440: Ubuntu Security Notification for Ruby vulnerabilities (USN-5020-1)

Ruby incorrectly handled certain inputs.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

an attacker could possibly use this issue to execute arbitrary code.
(cve-2021-31799).
an attacker could possibly use this issue to conduct port scans and service banner extractions.
This issue only affected ubuntu 18.04 lts, ubuntu 20.04 lts, ubuntu 20.10, and ubuntu 21.04. (
Cve-2021-31810).
an attacker could possibly use this issue to perform man-in-the-middle attackers to bypass the tls protection.
(cve-2021-32066).

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Refer to Ubuntu advisory: USN-5020-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198440

    CVE-2021-31799 | CVE-2021-32066 | CVE-2021-31810 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5020-1 Ubuntu Linux URL Logo usn.ubuntu.com/5020-1
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