QID 198566

Date Published: 2021-11-22

QID 198566: Ubuntu Security Notification for python-py Vulnerability (USN-5138-1)

The py

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.

Path.svnwc component of py (aka python-py) through v1.9.0 contains a regular expression with an ambiguous subpattern that is susceptible to catastrophic backtracing.
This could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Refer to Ubuntu advisory: USN-5138-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198566

    CVE-2020-29651 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5138-1 Ubuntu Linux URL Logo ubuntu.com/security/notices/USN-5138-1
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