RLSA-2021:1678

    Dashboard / Vulnerabilities / RLSA-2021:1678

    RLSA-2021:1678

    Published: 18 May 2021Last Modified: 5 Feb 2026

    Summary: Moderate: perl security and bug fix update

    Details: 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) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

    References: https://errata.rockylinux.org/RLSA-2021:1678, https://bugzilla.redhat.com/show_bug.cgi?id=1807120, https://bugzilla.redhat.com/show_bug.cgi?id=1837975, https://bugzilla.redhat.com/show_bug.cgi?id=1837988, https://bugzilla.redhat.com/show_bug.cgi?id=1903503, https://bugzilla.redhat.com/show_bug.cgi?id=1913693

    Affected packages

    Package

    Name: perl

    Purl: pkg:rpm/rocky-linux/perl?distro=rocky-linux-8-4-legacy&epoch=4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4:5.26.3-419.el8

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2021:1678 | CVE-DB