Vulnerability-Lookup

CNVD-2020-25866

Vulnerability from cnvd - Published: 2020-04-30

Title

libxls双重释放漏洞

Description

libxls是一个可以读取Excel（xls）文件的C库。 libxls 1.4.0中的ole.c中的read_MSAT函数存在双重释放漏洞。攻击者可通过特制文件利用该漏洞导致拒绝服务（应用程序崩溃）。

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： https://github.com/evanmiller/libxls

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-20450

Impacted products

Name
libxls libxls 1.4.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-20450"
    }
  },
  "description": "libxls\u662f\u4e00\u4e2a\u53ef\u4ee5\u8bfb\u53d6Excel\uff08xls\uff09\u6587\u4ef6\u7684C\u5e93\u3002\n\nlibxls 1.4.0\u4e2d\u7684ole.c\u4e2d\u7684read_MSAT\u51fd\u6570\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "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\nhttps://github.com/evanmiller/libxls",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-25866",
  "openTime": "2020-04-30",
  "products": {
    "product": "libxls libxls 1.4.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-20450",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-26",
  "title": "libxls\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e"
}

CVE-2018-20450 (GCVE-0-2018-20450)

Vulnerability from cvelistv5 – Published: 2018-12-25 17:00 – Updated: 2024-08-05 11:58

Summary

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/evanmiller/libxls/issues/34	x_refsource_MISC
	https://security.gentoo.org/glsa/202003-64	vendor-advisoryx_refsource_GENTOO

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 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-2020-25866

CVE-2018-20450 (GCVE-0-2018-20450)

Tags

Sightings

Nomenclature