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    4 vulnerabilities by comrak_project

    CVE-2023-28631 (GCVE-0-2023-28631)

    Vulnerability from cvelistv5 – Published: 2023-03-28 20:17 – Updated: 2025-02-18 20:06
    VLAI
    Title
    Attacker controlled data in AST nodes is not validated in comrak
    Summary
    comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A Comrak AST can be constructed manually by a program instead of parsing a Markdown document with `parse_document`. This AST can then be converted to HTML via `html::format_document_with_plugins`. However, the HTML formatting code assumes that the AST is well-formed. For example, many AST notes contain `[u8]` fields which the formatting code assumes is valid UTF-8 data. Several bugs can be triggered if this is not the case. Version 0.17.0 contains adjustments to the AST, storing strings instead of unvalidated byte arrays. Users are advised to upgrade. Users unable to upgrade may manually validate UTF-8 correctness of all data when assigning to `&[u8]` and `Vec<u8>` fields in the AST. This issue is also tracked as `GHSL-2023-049`.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-755 - Improper Handling of Exceptional Conditions
    Assigner
    References
    Impacted products
    Vendor Product Version
    kivikakk comrak Affected: < 0.17.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2023-28626 (GCVE-0-2023-28626)

    Vulnerability from cvelistv5 – Published: 2023-03-28 20:14 – Updated: 2025-02-18 19:03
    VLAI
    Title
    Quadratic runtime when parsing Markdown in comrak
    Summary
    comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A range of quadratic parsing issues are present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown. This issue has been addressed in version 0.17.0. Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as `GHSL-2023-047`
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    kivikakk comrak Affected: < 0.17.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2021-38186 (GCVE-0-2021-38186)

    Vulnerability from cvelistv5 – Published: 2021-08-08 05:10 – Updated: 2024-08-04 01:37
    VLAI
    Summary
    An issue was discovered in the comrak crate before 0.10.1 for Rust. It mishandles & characters, leading to XSS via &# HTML entities.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2021-27671 (GCVE-0-2021-27671)

    Vulnerability from cvelistv5 – Published: 2021-02-25 00:33 – Updated: 2024-08-03 21:26
    VLAI
    Summary
    An issue was discovered in the comrak crate before 0.9.1 for Rust. XSS can occur because the protection mechanism for data: and javascript: URIs is case-sensitive, allowing (for example) Data: to be used in an attack.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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              "lang": "eng",
              "value": "An issue was discovered in the comrak crate before 0.9.1 for Rust. XSS can occur because the protection mechanism for data: and javascript: URIs is case-sensitive, allowing (for example) Data: to be used in an attack."
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              "name": "https://rustsec.org/advisories/RUSTSEC-2021-0026.html",
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    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-27671",
    "datePublished": "2021-02-25T00:33:48.000Z",
    "dateReserved": "2021-02-25T00:00:00.000Z",
    "dateUpdated": "2024-08-03T21:26:10.659Z",
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