cnvd - cnvd-2021-14762

cnvd-2021-14762

Vulnerability from cnvd

Title: Pillow拒绝服务漏洞（CNVD-2021-14762）

Description:

Python Imaging Library (PIL)是Python编程语言的免费库，支持打开、操作和保存多种图像文件格式。Pillow是一个PIL分支。

Pillow 8.1.1之前版本存在拒绝服务漏洞。该漏洞源于未针对BLP容器正确检查所包含图像的报告大小。攻击者可通过尝试分配非常大的内存利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: Pillow拒绝服务漏洞（CNVD-2021-14762）的补丁

Patch Description:

Python Imaging Library (PIL)是Python编程语言的免费库，支持打开、操作和保存多种图像文件格式。Pillow是一个PIL分支。

Pillow 8.1.1之前版本存在拒绝服务漏洞。该漏洞源于未针对BLP容器正确检查所包含图像的报告大小。攻击者可通过尝试分配非常大的内存利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-27921

Impacted products

Name
Pillow Pillow <8.1.1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-27921",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-27921"
    }
  },
  "description": "Python Imaging Library (PIL)\u662fPython\u7f16\u7a0b\u8bed\u8a00\u7684\u514d\u8d39\u5e93\uff0c\u652f\u6301\u6253\u5f00\u3001\u64cd\u4f5c\u548c\u4fdd\u5b58\u591a\u79cd\u56fe\u50cf\u6587\u4ef6\u683c\u5f0f\u3002Pillow\u662f\u4e00\u4e2aPIL\u5206\u652f\u3002\n\nPillow 8.1.1\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u9488\u5bf9BLP\u5bb9\u5668\u6b63\u786e\u68c0\u67e5\u6240\u5305\u542b\u56fe\u50cf\u7684\u62a5\u544a\u5927\u5c0f\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c1d\u8bd5\u5206\u914d\u975e\u5e38\u5927\u7684\u5185\u5b58\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-14762",
  "openTime": "2021-03-05",
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  "patchName": "Pillow\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-14762\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Pillow Pillow \u003c8.1.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-27921",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-04",
  "title": "Pillow\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-14762\uff09"
}

CVE-2021-27921 (GCVE-0-2021-27921)

Vulnerability from cvelistv5

Published

2021-03-03 08:41

Modified

2025-08-15 04:41

Severity ?

CWE

Summary

Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.

References

▼	URL	Tags
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTSY25UJU7NJUFHH3HWT575LT4TDFWBZ/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TQQY6472RX4J2SUJENWDZAWKTJJGP2ML/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S7G44Z33J4BNI2DPDROHWGVG2U7ZH5JU/	vendor-advisory
	https://security.gentoo.org/glsa/202107-33	vendor-advisory
	https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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