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    CVE-2022-21722

    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 version 2.11.1 and prior, there are various cases where it is possible that certain incoming RTP/RTCP packets can potentially cause out-of-bound read access. This issue affects all users that use PJMEDIA and accept incoming RTP/RTCP. A patch is available as a commit in the `master` branch. There are no known workarounds.

    Published:Jan 27, 2022
    Last Modified:Nov 4, 2025
    EPS:Jan 27, 2022
    EPSS Score:0.00222
    CVSS Score:9.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Teluu
    Product
    Pjsip

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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    References

    https://github.com/pjsip/pjproject/commit/22af44e68a0c7d190ac1e25075e1382f77e9397a
    https://github.com/pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36
    https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
    https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
    https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
    https://security.gentoo.org/glsa/202210-37
    https://www.debian.org/security/2022/dsa-5285
    https://github.com/pjsip/pjproject/commit/22af44e68a0c7d190ac1e25075e1382f77e9397a
    https://github.com/pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36
    https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
    https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
    https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
    https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html
    https://security.gentoo.org/glsa/202210-37
    https://www.debian.org/security/2022/dsa-5285

    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