Vulnerability-Lookup

CNVD-2021-99625

Vulnerability from cnvd - Published: 2021-12-14

Title

Mozilla Firefox缓冲区溢出漏洞（CNVD-2021-99625）

Description

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出。

Severity

中

Patch Name

Mozilla Firefox缓冲区溢出漏洞（CNVD-2021-99625）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存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出。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/security/advisories/mfsa2021-50/

Reference

https://www.mozilla.org/security/advisories/mfsa2021-50/

Impacted products

Name
['Mozilla Firefox <94', 'Mozilla Thunderbird <91.3', 'Mozilla Firefox ESR <91.3']

Show details on source website

JSON

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{
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    "cve": {
      "cveNumber": "CVE-2021-43534",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-43534"
    }
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  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nMozilla Firefox\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-99625",
  "openTime": "2021-12-14",
  "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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-99625\uff09\u7684\u8865\u4e01",
  "products": {
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      "Mozilla Firefox \u003c94",
      "Mozilla Thunderbird \u003c91.3",
      "Mozilla Firefox ESR \u003c91.3"
    ]
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  "referenceLink": "https://www.mozilla.org/security/advisories/mfsa2021-50/",
  "serverity": "\u4e2d",
  "submitTime": "2021-12-12",
  "title": "Mozilla Firefox\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-99625\uff09"
}

CVE-2021-43534 (GCVE-0-2021-43534)

Vulnerability from cvelistv5 – Published: 2021-12-08 21:20 – Updated: 2024-08-04 03:55

Summary

Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Severity

No CVSS data available.

CWE

Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3

Assigner

mozilla mitre root

References

8 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1…	x_refsource_MISC
https://www.debian.org/security/2021/dsa-5026	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2022/dsa-5034	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Impacted products

3 products

Vendor	Product	Version
Mozilla	Firefox	Affected: unspecified , < 94 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 91.3 (custom)
Mozilla	Firefox ESR	Affected: unspecified , < 91.3 (custom)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.