Vulnerability-Lookup

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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      "cveNumber": "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",
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  "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",
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  "products": {
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  "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 redhat root

References

1 reference

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

Impacted products

1 product

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	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.