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    CVE-2021-21797

    An exploitable double-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a reference to a timeout object to be stored in two different places. When closed, the document will result in the reference being released twice. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger this vulnerability.

    Published:Oct 18, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 18, 2021
    EPSS Score:0.71708
    CVSS Score:7.8

    Affected Products

    Vendor
    Gonitro
    Product
    Nitro Pro

    Exploits

    https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2020-6113 (CVSS 7.8) — An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.’s Nitro…
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    CVE-2020-6115 (CVSS 7.8) — An exploitable vulnerability exists in the cross-reference table repairing functionality of Nitro Software, In…
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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