QID 239814

Date Published: 2021-11-10

QID 239814: Red Hat Update for graphviz (RHSA-2021:4256)

graphviz is open-source graph-visualization software.
Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks.
It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.

Security Fix(es):
  • graphviz: off-by-one in parse_reclbl() in lib/common/shapes.c (cve-2020-18032)

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



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 High - 7.8 severity.
  • CVSS V2 rated as High - 6.8 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-2021:4256 Update to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239814

    CVE-2020-18032 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:4256 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:4256
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