cnvd - cnvd-2021-19384

CNVD-2021-19384

Vulnerability from cnvd - Published: 2021-03-19

Title

Red Hat Enterprise Linux 8越界写入漏洞

Description

Red Hat Enterprise Linux 8是美国红帽（Red Hat）公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 8中的fontforge存在越界写入漏洞，该漏洞源于在解析包含某些LayerCount令牌的SFD文件时存在越界写入。攻击者可利用漏洞操纵在堆上分配的内存，从而导致应用程序崩溃或执行任意代码。

Severity

中

Patch Name

Red Hat Enterprise Linux 8越界写入漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://bugzilla.redhat.com/show_bug.cgi?id=1893188

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-25690

Impacted products

Name
Red Hat Enterprise Linux 8

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2020-25690",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25690"
    }
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  "description": "Red Hat Enterprise Linux 8\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u5957\u9762\u5411\u4f01\u4e1a\u7528\u6237\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nRed Hat Enterprise Linux 8\u4e2d\u7684fontforge\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u89e3\u6790\u5305\u542b\u67d0\u4e9bLayerCount\u4ee4\u724c\u7684SFD\u6587\u4ef6\u65f6\u5b58\u5728\u8d8a\u754c\u5199\u5165\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u64cd\u7eb5\u5728\u5806\u4e0a\u5206\u914d\u7684\u5185\u5b58\uff0c\u4ece\u800c\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u6216\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.redhat.com/show_bug.cgi?id=1893188",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-19384",
  "openTime": "2021-03-19",
  "patchDescription": "Red Hat Enterprise Linux 8\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u5957\u9762\u5411\u4f01\u4e1a\u7528\u6237\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nRed Hat Enterprise Linux 8\u4e2d\u7684fontforge\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u89e3\u6790\u5305\u542b\u67d0\u4e9bLayerCount\u4ee4\u724c\u7684SFD\u6587\u4ef6\u65f6\u5b58\u5728\u8d8a\u754c\u5199\u5165\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u64cd\u7eb5\u5728\u5806\u4e0a\u5206\u914d\u7684\u5185\u5b58\uff0c\u4ece\u800c\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u6216\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": "Red Hat Enterprise Linux 8\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Red Hat Enterprise Linux   8"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25690",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-05",
  "title": "Red Hat Enterprise Linux 8\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

CVE-2020-25690 (GCVE-0-2020-25690)

Vulnerability from cvelistv5 – Published: 2021-02-23 03:40 – Updated: 2024-08-04 15:40

Summary

An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity ?

No CVSS data available.

CWE

CWE-119

Assigner

redhat

References

URL

Tags

https://bugzilla.redhat.com/show_bug.cgi?id=1893188

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	fontforge	Affected: fontforge before 20200314

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 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.

Action not permitted

CNVD-2021-19384

CVE-2020-25690 (GCVE-0-2020-25690)

Tags

Sightings

Nomenclature