CVE-2018-6548

    Dashboard / Vulnerabilities / CVE-2018-6548

    CVE-2018-6548

    Published: 2 Feb 2018Last Modified: 8 Jul 2026

    Summary:

    Details: A use-after-free issue was discovered in libwebm through 2018-02-02. If a Vp9HeaderParser was initialized once before, its property frame_ would not be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its frame_ could be freed while the corresponding pointer would not be updated, leading to a dangling pointer. This is related to the function OutputCluster in webm_info.cc.

    References: https://bugs.chromium.org/p/webm/issues/detail?id=1493, https://github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.md

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    libwebm-1.0.0.27
    libwebm-1.0.0.26
    libwebm-1.0.0.25
    libwebm-1.0.0.24
    libwebm-1.0.0.23
    libwebm-1.0.0.22
    libwebm-1.0.0.21
    libwebm-1.0.0.20
    libwebm-1.0.0.19
    libwebm-1.0.0.18
    libwebm-1.0.0.17
    libwebm-1.0.0.16
    libwebm-1.0.0.15
    libwebm-1.0.0.14
    libwebm-1.0.0.13
    libwebm-1.0.0.12
    libwebm-1.0.0.11
    libwebm-1.0.0.10
    libwebm-1.0.0.9
    libwebm-1.0.0.8
    libwebm-1.0.0.7
    libwebm-1.0.0.6
    libwebm-1.0.0.5
    libwebm-1.0.0.4
    libwebm-1.0.0.3
    libwebm-1.0.0.2

    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