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    CVE-2022-23852

    Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.

    Published:Jan 23, 2022
    Last Modified:May 5, 2025
    EPS:Jan 24, 2022
    EPSS Score:0.01944
    CVSS Score:9.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libexpat Project
    Product
    Libexpat
    Vendor
    Netapp
    Product
    Clustered Data Ontap
    Vendor
    Netapp
    Product
    Oncommand Workflow Automation
    Vendor
    Oracle
    Product
    Communications Metasolv Solution
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Siemens
    Product
    Sinema Remote Connect Server
    Vendor
    Tenable
    Product
    Nessus

    Exploits

    https://github.com/Satheesh575555/external_expat_AOSP10_r33_CVE-2022-23852

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
    https://github.com/libexpat/libexpat/pull/550
    https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
    https://security.gentoo.org/glsa/202209-24
    https://security.netapp.com/advisory/ntap-20220217-0001/
    https://www.debian.org/security/2022/dsa-5073
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.tenable.com/security/tns-2022-05
    https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
    https://github.com/libexpat/libexpat/pull/550
    https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
    https://security.gentoo.org/glsa/202209-24
    https://security.netapp.com/advisory/ntap-20220217-0001/
    https://www.debian.org/security/2022/dsa-5073
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.tenable.com/security/tns-2022-05

    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