cnvd - cnvd-2019-06789

cnvd-2019-06789

Vulnerability from cnvd

Title: LibSass拒绝服务漏洞（CNVD-2019-06789）

Description:

LibSass是一个开源的使用C语言编写的Sass（CSS扩展语言）解析器。

LibSass 3.5.5之前版本中的ast.cpp文件的多个函数存在安全漏洞。攻击者可借助特制的sass文件利用该漏洞造成拒绝服务（栈损坏）。

Severity: 中

Formal description:

厂商尚未提供漏洞修复方案，请关注厂商主页更新： http://sass-lang.com/libsass

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-19838

Impacted products

Name
LibSass LibSass <3.5.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-19838"
    }
  },
  "description": "LibSass\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684Sass\uff08CSS\u6269\u5c55\u8bed\u8a00\uff09\u89e3\u6790\u5668\u3002\n\nLibSass 3.5.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684ast.cpp\u6587\u4ef6\u7684\u591a\u4e2a\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684sass\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6808\u635f\u574f\uff09\u3002",
  "discovererName": "unKnow",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttp://sass-lang.com/libsass",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-06789",
  "openTime": "2019-03-11",
  "products": {
    "product": "LibSass LibSass \u003c3.5.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-19838",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-04",
  "title": "LibSass\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-06789\uff09"
}

CVE-2018-19838 (GCVE-0-2018-19838)

Vulnerability from cvelistv5

Published

2018-12-04 09:00

Modified

2024-08-05 11:44

Severity ?

CWE

Summary

In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().

References

▼	URL	Tags
	https://github.com/sass/libsass/issues/2660	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html	vendor-advisory, x_refsource_SUSE

Impacted products

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

Show details on NVD website

JSON

To clipboard

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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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