CVE-2023-1999

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    CVE-2023-1999

    Published: 20 Jun 2023Last Modified: 12 Aug 2026

    Summary: Use after free in libwebp

    Details: There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

    References: https://chromium.googlesource.com/, https://chromium.googlesource.com/webm/libwebp, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/1xxx/CVE-2023-1999.json, https://nvd.nist.gov/vuln/detail/CVE-2023-1999, https://security.gentoo.org/glsa/202309-05

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 6a2209aa366a4648c9d74d3434457d704f0a8fe1
    Fixed -fd7bb21c0cb56e8a82e9bfa376164b842f433f3b

    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
    CVE-2023-1999 | CVE-DB