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    CVE-2019-20396

    A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.

    Published:Mar 29, 2019
    Last Modified:Nov 21, 2024
    EPS:Jan 22, 2020
    EPSS Score:0.00256
    CVSS Score:6.5

    Affected Products

    Vendor
    Cesnet
    Product
    Libyang
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/CESNET/libyang/issues/740https://github.com/CESNET/libyang/issues/740

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    CVE-2021-28906 (CVSS 7.5) — In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NU…
    CVE-2021-28902 (CVSS 7.5) — In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] …
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    CVE-2021-28905 (CVSS 7.5) — In function lys_node_free() in libyang <= v1.0.225, it asserts that the value of node->module can't be NULL. B…
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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