cnvd - cnvd-2021-90095

cnvd-2021-90095

Vulnerability from cnvd

Title: Mozilla Firefox释放后重用漏洞（CNVD-2021-90095）

Description:

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

Mozilla Firefox存在释放后重用漏洞，该漏洞是由于nsLanguageAtomService对象中的释放后使用错误而存在的。远程攻击者可以利用该漏洞诱使受害者打开巧尽心思构建的网站，在释放错误后触发使用，并在系统上执行任意代码。

Severity: 中

Patch Name: Mozilla Firefox释放后重用漏洞（CNVD-2021-90095）的补丁

Patch Description:

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

Mozilla Firefox存在释放后重用漏洞，该漏洞是由于nsLanguageAtomService对象中的释放后使用错误而存在的。远程攻击者可以利用该漏洞诱使受害者打开巧尽心思构建的网站，在释放错误后触发使用，并在系统上执行任意代码。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://bugzilla.mozilla.org/show_bug.cgi?id=1729642

Reference: https://www.cybersecurity-help.cz/vdb/SB2021100515

Impacted products

Name
['Mozilla Firefox <93.0', 'Mozilla Thunderbird <91.2', 'Mozilla Firefox ESR <91.2']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-38498",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-38498"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nMozilla Firefox\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ensLanguageAtomService\u5bf9\u8c61\u4e2d\u7684\u91ca\u653e\u540e\u4f7f\u7528\u9519\u8bef\u800c\u5b58\u5728\u7684\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u5de7\u5c3d\u5fc3\u601d\u6784\u5efa\u7684\u7f51\u7ad9\uff0c\u5728\u91ca\u653e\u9519\u8bef\u540e\u89e6\u53d1\u4f7f\u7528\uff0c\u5e76\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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://bugzilla.mozilla.org/show_bug.cgi?id=1729642",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-90095",
  "openTime": "2021-11-23",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\r\n\r\nMozilla Firefox\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ensLanguageAtomService\u5bf9\u8c61\u4e2d\u7684\u91ca\u653e\u540e\u4f7f\u7528\u9519\u8bef\u800c\u5b58\u5728\u7684\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u5de7\u5c3d\u5fc3\u601d\u6784\u5efa\u7684\u7f51\u7ad9\uff0c\u5728\u91ca\u653e\u9519\u8bef\u540e\u89e6\u53d1\u4f7f\u7528\uff0c\u5e76\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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\uff08CNVD-2021-90095\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Mozilla Firefox \u003c93.0",
      "Mozilla Thunderbird \u003c91.2",
      "Mozilla Firefox ESR \u003c91.2"
    ]
  },
  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021100515",
  "serverity": "\u4e2d",
  "submitTime": "2021-10-10",
  "title": "Mozilla Firefox\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\uff08CNVD-2021-90095\uff09"
}

CVE-2021-38498 (GCVE-0-2021-38498)

Vulnerability from cvelistv5

Published

2021-11-03 00:03

Modified

2024-08-04 01:44

Severity ?

CWE

Use-after-free of nsLanguageAtomService object

Summary

During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

References

▼	URL	Tags
	https://www.mozilla.org/security/advisories/mfsa2021-47/	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2021-45/	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2021-43/	x_refsource_MISC
	https://bugzilla.mozilla.org/show_bug.cgi?id=1729642	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

Mozilla

Firefox

Version: unspecified < 93

	Mozilla	Thunderbird	Version: unspecified < 91.2
	Mozilla	Firefox ESR	Version: unspecified < 91.2

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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