ALSA-2023:5838

    Dashboard / Vulnerabilities / ALSA-2023:5838

    ALSA-2023:5838

    Published: 18 Oct 2023Last Modified: 29 Oct 2026
    Upstream:
    CVE-2023-44487

    Summary: Important: nghttp2 security update

    Details: libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C. Security Fix(es): * HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487) 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.

    References: https://access.redhat.com/errata/RHSA-2023:5838, https://access.redhat.com/security/cve/CVE-2023-44487, https://bugzilla.redhat.com/2242803, https://errata.almalinux.org/9/ALSA-2023-5838.html

    Affected packages

    Package

    Name: libnghttp2

    Purl: pkg:rpm/almalinux/libnghttp2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.43.0-5.el9_2.1

    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