cnvd - cnvd-2021-90101

cnvd-2021-90101

Vulnerability from cnvd

Title: Mozilla Firefox类型混淆漏洞（CNVD-2021-90101）

Description:

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

Mozilla Firefox存在类型混淆漏洞，该漏洞源于错误的JIT优化和类型混淆错误。远程攻击者可以诱使受害者打开巧尽心思构建的网页并读取一位内存。

Severity: 中

Patch Name: Mozilla Firefox类型混淆漏洞（CNVD-2021-90101）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存在类型混淆漏洞，该漏洞源于错误的JIT优化和类型混淆错误。远程攻击者可以诱使受害者打开巧尽心思构建的网页并读取一位内存。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/mfsa2021-33/

Reference: https://www.cybersecurity-help.cz/vdb/SB2021081008

Impacted products

Name
['Mozilla Firefox <91.0', 'Mozilla Thunderbird <91.0']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-29982",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-29982"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nMozilla Firefox\u5b58\u5728\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u7684JIT\u4f18\u5316\u548c\u7c7b\u578b\u6df7\u6dc6\u9519\u8bef\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u5de7\u5c3d\u5fc3\u601d\u6784\u5efa\u7684\u7f51\u9875\u5e76\u8bfb\u53d6\u4e00\u4f4d\u5185\u5b58\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/mfsa2021-33/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-90101",
  "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\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u7684JIT\u4f18\u5316\u548c\u7c7b\u578b\u6df7\u6dc6\u9519\u8bef\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u8bf1\u4f7f\u53d7\u5bb3\u8005\u6253\u5f00\u5de7\u5c3d\u5fc3\u601d\u6784\u5efa\u7684\u7f51\u9875\u5e76\u8bfb\u53d6\u4e00\u4f4d\u5185\u5b58\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\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\uff08CNVD-2021-90101\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Mozilla Firefox \u003c91.0",
      "Mozilla Thunderbird \u003c91.0"
    ]
  },
  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021081008",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-12",
  "title": "Mozilla Firefox\u7c7b\u578b\u6df7\u6dc6\u6f0f\u6d1e\uff08CNVD-2021-90101\uff09"
}

CVE-2021-29982 (GCVE-0-2021-29982)

Vulnerability from cvelistv5

Published

2021-08-17 19:12

Modified

2024-08-03 22:24

Severity ?

CWE

Single bit data leak due to incorrect JIT optimization and type confusion

Summary

Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.

References

▼	URL	Tags
	https://www.mozilla.org/security/advisories/mfsa2021-33/	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2021-36/	x_refsource_MISC
	https://bugzilla.mozilla.org/show_bug.cgi?id=1715318	x_refsource_MISC
	https://security.gentoo.org/glsa/202202-03	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Mozilla

Firefox

Version: unspecified < 91

Mozilla

Thunderbird

Version: unspecified < 91

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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