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    CVE-2021-21798

    An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a stack variable to go out of scope, resulting in the application dereferencing a stale pointer. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger the vulnerability.

    Published:Sep 15, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 15, 2021
    EPSS Score:0.40263
    CVSS Score:7.8

    Affected Products

    Vendor
    Gonitro
    Product
    Nitro Pro

    Exploits

    https://talosintelligence.com/vulnerability_reports/TALOS-2021-1267https://talosintelligence.com/vulnerability_reports/TALOS-2021-1267

    Common Weakness Enumeration

    CWE-562 Return of Stack Variable Address

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2018-18689 (CVSS 5.3) — The Portable Document Format (PDF) specification does not provide any information regarding the concrete proce…
    CVE-2018-18688 (CVSS 5.3) — The Portable Document Format (PDF) specification does not provide any information regarding the concrete proce…
    CVE-2020-6113 (CVSS 7.8) — An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.’s Nitro…
    CVE-2020-6112 (CVSS 7.8) — An exploitable code execution vulnerability exists in the JPEG2000 Stripe Decoding functionality of Nitro Soft…
    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