QID 239170

Date Published: 2021-03-24

QID 239170: Red Hat Update for perl (RHSA-2021:0883)

Perl is a high-level programming language that is commonly used for system administration utilities and web programming.

Security Fix(es): perl: heap-based buffer overflow in regular expression compiler leads to DoS (CVE-2020-10543) perl: corruption of intermediate language state of compiled regular expression due to integer overflow leads to DoS (CVE-2020-10878) perl: corruption of intermediate language state of compiled regular expression due to recursive S_study_chunk()
calls leads to DoS (CVE-2020-12723)

Affected Products:

Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
Red Hat Enterprise Linux Server - AUS 7.6 x86_64
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
Red Hat Enterprise Linux Server - TUS 7.6 x86_64
Red Hat Enterprise Linux for Power 9 7 ppc64le
Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
Red Hat Enterprise Linux for IBM System z (Structure A) 7 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 Critical - 8.6 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:0883 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239170

    CVE-2020-10543 | CVE-2020-10878 | CVE-2020-12723 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:0883 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:0883?language=en
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