CVE-2021-33056

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    CVE-2021-33056

    Published: 12 Aug 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Belledonne Belle-sip before 4.5.20, as used in Linphone and other products, can crash via an invalid From header in a SIP message.

    References: https://github.com/BelledonneCommunications/belle-sip/commit/116e3eb48fe43ea63eb9f3c4b4b30c48d58d6ff0, https://github.com/BelledonneCommunications/belle-sip/compare/4.5.15...4.5.20

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -da97113b398d0414f06271a24d3fa8bfde1c5bbd

    Affected versions

    4.5.15
    4.5.14
    4.5.13
    4.5.12
    4.5.10
    4.5.7
    4.5.3
    4.5.1
    4.5.0
    4.5.0-alpha

    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-2021-33056 | CVE-DB