cnvd - cnvd-2020-44564

cnvd-2020-44564

Vulnerability from cnvd

Title: Mozilla Firefox缓冲区溢出漏洞（CNVD-2020-44564）

Description:

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

Mozilla Firefox 78之前版本中的nsJPEGEncoder：：emptyOutputBuffer存在缓冲区溢出漏洞。攻击者可借助JPEG图像利用该漏洞造成越界写入，内存损坏并可能导致崩溃。

Severity: 高

Patch Name: Mozilla Firefox缓冲区溢出漏洞（CNVD-2020-44564）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 78之前版本中的nsJPEGEncoder：：emptyOutputBuffer存在缓冲区溢出漏洞。攻击者可借助JPEG图像利用该漏洞造成越界写入，内存损坏并可能导致崩溃。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.mozilla.org/en-US/security/advisories/mfsa2020-24/

Reference: https://www.auscert.org.au/bulletins/ESB-2020.2278/

Impacted products

Name
Mozilla Firefox <78

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-12422"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\n\nMozilla Firefox 78\u4e4b\u524d\u7248\u672c\u4e2d\u7684nsJPEGEncoder\uff1a\uff1aemptyOutputBuffer\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9JPEG\u56fe\u50cf\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8d8a\u754c\u5199\u5165\uff0c\u5185\u5b58\u635f\u574f\u5e76\u53ef\u80fd\u5bfc\u81f4\u5d29\u6e83\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-44564",
  "openTime": "2020-08-05",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002\r\n\r\nMozilla Firefox 78\u4e4b\u524d\u7248\u672c\u4e2d\u7684nsJPEGEncoder\uff1a\uff1aemptyOutputBuffer\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9JPEG\u56fe\u50cf\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8d8a\u754c\u5199\u5165\uff0c\u5185\u5b58\u635f\u574f\u5e76\u53ef\u80fd\u5bfc\u81f4\u5d29\u6e83\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-2020-44564\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Mozilla Firefox \u003c78"
  },
  "referenceLink": "https://www.auscert.org.au/bulletins/ESB-2020.2278/",
  "serverity": "\u9ad8",
  "submitTime": "2020-07-03",
  "title": "Mozilla Firefox\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-44564\uff09"
}

CVE-2020-12422 (GCVE-0-2020-12422)

Vulnerability from cvelistv5

Published

2020-07-09 14:39

Modified

2024-08-04 11:56

Severity ?

CWE

Integer overflow in nsJPEGEncoder::emptyOutputBuffer

Summary

In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.

References

▼	URL	Tags
	https://www.mozilla.org/security/advisories/mfsa2020-24/	x_refsource_MISC
	https://bugzilla.mozilla.org/show_bug.cgi?id=1450353	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	vendor-advisory, x_refsource_SUSE
	https://security.gentoo.org/glsa/202007-10	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	Mozilla	Firefox	Version: unspecified < 78

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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