CVE-2021-27807 (GCVE-0-2021-27807)

Vulnerability from cvelistv5 – Published: 2021-03-19 16:05 – Updated: 2025-02-13 16:27
VLAI
Title
A carefully crafted PDF file can trigger an infinite loop while loading the file
Summary
A carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
Assigner
References
URL Tags
https://lists.apache.org/thread.html/r818058ff1e4… x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/03/19/9 mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r4717f902f8b… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r043edc5dcf9… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r1d268642f8b… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r7ee634c2181… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re1e35881482… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rc69140d894c… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9ffe1793856… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/raa35746227f… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r5c8e2125d18… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r1218e60c328… mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.apache.org/thread.html/r6e067a6d83c… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r4cbc3f6981c… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r54594251369… mailing-listx_refsource_MLIST
https://www.oracle.com//security-alerts/cpujul2021.html x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC
Impacted products
Vendor Product Version
Apache Software Foundation Apache PDFBox Affected: Apache PDFBox , ≤ 2.0.22 (custom)
Create a notification for this product.
Credits
Apache PDFBox would like to thank Fabian Meumertzheim for reporting this issue
Show details on NVD website
To clipboard 

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              "name": "[pdfbox-users] 20210319 CVE-2021-27807: A carefully crafted PDF file can trigger an infinite loop while loading the file",
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      "id": "CVE-2021-27807",
      "lastModified": "2024-11-21T05:58:36.030",
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      "published": "2021-03-19T16:15:13.013",
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      "sourceIdentifier": "security@apache.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security@apache.org\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-834\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-834\"}]}]"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-01-13T21:51:40+00:00",
      "cve": "CVE-2021-27807",
      "id": "CVE-2021-27807",
      "initial_release_date": "2021-03-19T00:00:00+00:00",
      "product_status:fixed": "2",
      "product_status:known_affected": "6",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "pdfbox: infinite loop while loading a crafted PDF file",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-27807.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-19T18:16:18Z",
      "cve": "CVE-2021-27807",
      "id": "CVE-2021-27807",
      "initial_release_date": "2023-02-15T03:44:23Z",
      "product_status:known_not_affected": "24",
      "product_status:recommended": "44",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-27807",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-27807.json",
      "version": "14"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.