QID 751033

Date Published: 2021-08-31

QID 751033: SUSE Enterprise Linux Security Update for python-PyYAML (SUSE-SU-2021:2818-1)

This update for python-pyyaml fixes the following issues: - update to 5.3.1.
- cve-2020-14343: a vulnerability was discovered in the pyyaml library, where it was 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.
This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor.
This flaw is due to an incomplete fix for cve-2020-1747.

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.

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as Critical - 10 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:2818-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 751033

    CVE-2020-14343 | CVE-2020-1747 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:2818-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-August/009336.html
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