MGASA-2020-0155 - Updated python-yaml packages fix security vulnerability

Publication date: 02 Apr 2020
URL: https://advisories.mageia.org/MGASA-2020-0155.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2020-1747

Updated python-yaml packages fix security vulnerability:

A vulnerability was discovered in the PyYAML library, where it is
susceptible to arbitrary code execution when it processes untrusted
YAML files through the full_load method or with the FullLoader loader.
Applications that use the library to process untrusted input may be
vulnerable to this flaw. An attacker could use this flaw to execute
arbitrary code on the system by abusing the python/object/new
constructor (CVE-2020-1747).

References:
- https://bugs.mageia.org/show_bug.cgi?id=26405
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1747

SRPMS:
- 7/core/python-yaml-5.3.1-1.mga7

Mageia 2020-0155: python-yaml security update

Updated python-yaml packages fix security vulnerability: A vulnerability was discovered in the PyYAML library, where it is susceptible to arbitrary code execution when it processe...

Summary

Updated python-yaml packages fix security vulnerability:
A vulnerability was discovered in the PyYAML library, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor (CVE-2020-1747).

References

- https://bugs.mageia.org/show_bug.cgi?id=26405

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1747

Resolution

MGASA-2020-0155 - Updated python-yaml packages fix security vulnerability

SRPMS

- 7/core/python-yaml-5.3.1-1.mga7

Severity
Publication date: 02 Apr 2020
URL: https://advisories.mageia.org/MGASA-2020-0155.html
Type: security
CVE: CVE-2020-1747

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