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    CVE-2021-21375

    PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.

    Published:Mar 10, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 10, 2021
    EPSS Score:0.02312
    CVSS Score:6.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Teluu
    Product
    Pjsip

    Exploits

    https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvphttps://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp

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    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