cnvd - cnvd-2020-65146

cnvd-2020-65146

Vulnerability from cnvd

Title: Mozilla Firefox释放后重用漏洞

Description:

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。

FireFox存在释放后重用漏洞，该漏洞源于在浏览器关闭期间，在之前释放的对象上可能会发生引用减少，从而导致释放后使用、内存损坏和潜在的可利用崩溃。目前没有详细的漏洞细节提供。

Severity: 高

Patch Name: Mozilla Firefox释放后重用漏洞的补丁

Patch Description:

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。

FireFox存在释放后重用漏洞，该漏洞源于在浏览器关闭期间，在之前释放的对象上可能会发生引用减少，从而导致释放后使用、内存损坏和潜在的可利用崩溃。目前没有详细的漏洞细节提供。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://www.mozilla.org/en-US/security/advisories/mfsa2020-51/

Reference: https://vigilance.fr/vulnerability/Firefox-Thunderbird-multiple-vulnerabilities-33912

Impacted products

Name
mozilla Mozilla Firefox

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26959",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-26959"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nFireFox\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6d4f\u89c8\u5668\u5173\u95ed\u671f\u95f4\uff0c\u5728\u4e4b\u524d\u91ca\u653e\u7684\u5bf9\u8c61\u4e0a\u53ef\u80fd\u4f1a\u53d1\u751f\u5f15\u7528\u51cf\u5c11\uff0c\u4ece\u800c\u5bfc\u81f4\u91ca\u653e\u540e\u4f7f\u7528\u3001\u5185\u5b58\u635f\u574f\u548c\u6f5c\u5728\u7684\u53ef\u5229\u7528\u5d29\u6e83\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-51/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-65146",
  "openTime": "2020-11-19",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\r\n\r\nFireFox\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6d4f\u89c8\u5668\u5173\u95ed\u671f\u95f4\uff0c\u5728\u4e4b\u524d\u91ca\u653e\u7684\u5bf9\u8c61\u4e0a\u53ef\u80fd\u4f1a\u53d1\u751f\u5f15\u7528\u51cf\u5c11\uff0c\u4ece\u800c\u5bfc\u81f4\u91ca\u653e\u540e\u4f7f\u7528\u3001\u5185\u5b58\u635f\u574f\u548c\u6f5c\u5728\u7684\u53ef\u5229\u7528\u5d29\u6e83\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": "Mozilla Firefox\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "mozilla Mozilla Firefox"
  },
  "referenceLink": "https://vigilance.fr/vulnerability/Firefox-Thunderbird-multiple-vulnerabilities-33912",
  "serverity": "\u9ad8",
  "submitTime": "2020-11-18",
  "title": "Mozilla Firefox\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e"
}

CVE-2020-26959 (GCVE-0-2020-26959)

Vulnerability from cvelistv5

Published

2020-12-09 00:22

Modified

2024-08-04 16:03

Severity ?

CWE

Use-after-free in WebRequestService

Summary

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

References

▼	URL	Tags
	https://bugzilla.mozilla.org/show_bug.cgi?id=1669466	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2020-50/	x_refsource_CONFIRM
	https://www.mozilla.org/security/advisories/mfsa2020-52/	x_refsource_CONFIRM
	https://www.mozilla.org/security/advisories/mfsa2020-51/	x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

▼

Mozilla

Firefox

Version: < 83

	Mozilla	Firefox ESR	Version: < 78.5
	Mozilla	Thunderbird	Version: < 78.5

Show details on NVD website

JSON

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      "x_legacyV4Record": {
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    "dateReserved": "2020-10-12T00:00:00",
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    "state": "PUBLISHED"
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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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