cnvd - cnvd-2021-95593

CNVD-2021-95593

Vulnerability from cnvd - Published: 2021-12-09

Title

calibre存在未明漏洞

Description

Calibre是一个开源免费的全能电子书阅读管理与格式转换工具。 calibre 5.32.0 之前存在安全漏洞，该漏洞源于在 ebooks/conversion/preprocess.py 的 html_preprocess_rules 中包含容易受到 ReDoS（正则表达式拒绝服务）攻击的正则表达式。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

calibre存在未明漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0

Reference

https://bugs.launchpad.net/calibre/+bug/1951979

Impacted products

Name
Calibre Calibre <5.32.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-44686"
    }
  },
  "description": "Calibre\u662f\u4e00\u4e2a\u5f00\u6e90\u514d\u8d39\u7684\u5168\u80fd\u7535\u5b50\u4e66\u9605\u8bfb\u7ba1\u7406\u4e0e\u683c\u5f0f\u8f6c\u6362\u5de5\u5177\u3002\n\ncalibre 5.32.0 \u4e4b\u524d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728 ebooks/conversion/preprocess.py \u7684 html_preprocess_rules \u4e2d\u5305\u542b\u5bb9\u6613\u53d7\u5230 ReDoS\uff08\u6b63\u5219\u8868\u8fbe\u5f0f\u62d2\u7edd\u670d\u52a1\uff09\u653b\u51fb\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-95593",
  "openTime": "2021-12-09",
  "patchDescription": "Calibre\u662f\u4e00\u4e2a\u5f00\u6e90\u514d\u8d39\u7684\u5168\u80fd\u7535\u5b50\u4e66\u9605\u8bfb\u7ba1\u7406\u4e0e\u683c\u5f0f\u8f6c\u6362\u5de5\u5177\u3002\r\n\r\ncalibre 5.32.0 \u4e4b\u524d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728 ebooks/conversion/preprocess.py \u7684 html_preprocess_rules \u4e2d\u5305\u542b\u5bb9\u6613\u53d7\u5230 ReDoS\uff08\u6b63\u5219\u8868\u8fbe\u5f0f\u62d2\u7edd\u670d\u52a1\uff09\u653b\u51fb\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "calibre\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Calibre Calibre \u003c5.32.0"
  },
  "referenceLink": "https://bugs.launchpad.net/calibre/+bug/1951979",
  "serverity": "\u4e2d",
  "submitTime": "2021-12-08",
  "title": "calibre\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2021-44686 (GCVE-0-2021-44686)

Vulnerability from cvelistv5 – Published: 2021-12-06 23:41 – Updated: 2025-11-04 16:09

Summary

calibre before 5.32.0 contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in ebooks/conversion/preprocess.py.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://bugs.launchpad.net/calibre/+bug/1951979	x_refsource_MISC
	https://github.com/dwisiswant0/advisory/issues/18	x_refsource_MISC
	https://github.com/kovidgoyal/calibre/compare/v5.…	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0"
          },
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            "name": "FEDORA-2021-e42fadbcc3",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2021-95593

CVE-2021-44686 (GCVE-0-2021-44686)

Tags

Sightings

Nomenclature