CLSA-2023-1697016696

    Dashboard / Vulnerabilities / CLSA-2023-1697016696

    CLSA-2023-1697016696

    Published: 11 Oct 2023Last Modified: 4 Jun 2026

    Summary: Fix CVE(s): CVE-2023-4863, CVE-2023-4836

    Details: * SECURITY UPDATE: Heap buffer overflow - debian/patches/CVE-2023-4863-pre.patch: prepare sources to be patched - debian/patches/CVE-2023-4863-1.patch: first, BuildHuffmanTable() is called to check if the data is valid. If it is and the table is not big enough, more memory is allocated. This will make sure that valid (but unoptimized because of unbalanced codes) streams are still decodable. - debian/patches/CVE-2023-4863-2.patch: fix memory error - debian/patches/CVE-2023-4863-3.patch: remove unused code - debian/patches/CVE-2023-4863-4.patch: fix pointer offset int overflow - CVE-2023-4836

    References: https://errata.cloudlinux.com/ubuntu18_04-els/CLSA-2023-1697016696

    Affected packages

    Package

    Name: libwebp-dev

    Purl: pkg:deb/tuxcare/libwebp-dev?distro=ubuntu-18.04

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6.1-2ubuntu0.18.04.2.tuxcare.els1

    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
    CLSA-2023-1697016696 | CVE-DB