CLEANSTART-2024-PI41947

    Dashboard / Vulnerabilities / CLEANSTART-2024-PI41947

    CLEANSTART-2024-PI41947

    Published: 31 Oct 2026Last Modified: 31 Oct 2026
    Upstream:
    CVE-2021-43535

    Summary: use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash

    Details: Security vulnerability affects the thunderbird package. A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash.

    References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-PI41947.json, https://osv.dev/vulnerability/CVE-2021-43535, https://nvd.nist.gov/vuln/detail/CVE-2021-43535

    Affected packages

    Package

    Name: thunderbird

    Purl: pkg:apk/cleanstart/thunderbird

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -91.3.2-r0

    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
    CLEANSTART-2024-PI41947 | CVE-DB