CVE-2021-28902

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    CVE-2021-28902

    Published: 20 May 2021Last Modified: 7 Aug 2026

    Summary:

    Details: In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.

    References: https://security.gentoo.org/glsa/202107-54, https://github.com/CESNET/libyang/issues/1454

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v1.0.225
    v1.0.167
    v1.0.130
    v1.0.109

    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-2021-28902 | CVE-DB