RLSA-2021:4236

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    RLSA-2021:4236

    Published: 9 Nov 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-8037

    Summary: Low: tcpdump security and bug fix update

    Details: The tcpdump packages contain the tcpdump utility for monitoring network traffic. The tcpdump utility can capture and display the packet headers on a particular network interface or on all interfaces. Security Fix(es): * tcpdump: ppp decapsulator can be convinced to allocate a large amount of memory (CVE-2020-8037) 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 8.5 Release Notes linked from the References section.

    References: https://errata.rockylinux.org/RLSA-2021:4236, https://bugzilla.redhat.com/show_bug.cgi?id=1860216, https://bugzilla.redhat.com/show_bug.cgi?id=1895080

    Affected packages

    Package

    Name: tcpdump

    Purl: pkg:rpm/rocky-linux/tcpdump?distro=rocky-linux-8-5-legacy&epoch=4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4:4.9.3-2.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-2021:4236 | CVE-DB