QID 239826

Date Published: 2021-11-11

QID 239826: Red Hat Update for python27:2.7 (RHSA-2021:4151)

python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing.
Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):
  • python: unsafe use of eval() on data retrieved via http in the test suite (cve-2020-27619)
  • python-jinja2: redos vulnerability in the urlize filter (cve-2020-28493)
  • python-babel: relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code (cve-2021-20095, cve-2021-42771)
  • python-pygments: infinite loop in sml lexer may lead to dos (cve-2021-20270)
  • python: web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters (cve-2021-23336)
  • python-pygments: redos in multiple lexers (cve-2021-27291)
  • python-lxml: missing input sanitization for formaction html5 attributes may lead to xss (cve-2021-28957)

Affected Products:

  • Red Hat enterprise linux for x86_64 8 x86_64
  • Red Hat enterprise linux for ibm z systems 8 s390x
  • Red Hat enterprise linux for power, little endian 8 ppc64le
  • Red Hat enterprise linux for arm 64 8 aarch64



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.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch.

    Refer to Refer to :
    Applying Package Updates to RHEL system     for details.

    Refer to Red Hat security advisory RHSA-2021:4151 Update to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239826

    CVE-2020-27619 | CVE-2020-28493 | CVE-2021-20095 | CVE-2021-20270 | CVE-2021-23336 | CVE-2021-27291 | CVE-2021-28957 | CVE-2021-42771 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:4151 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:4151
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].