Vulnerability-Lookup

CNVD-2019-15933

Vulnerability from cnvd - Published: 2019-05-30

Title

wolfSSL缓冲区溢出漏洞（CNVD-2019-15933）

Description

wolfSSL是一个旨在供嵌入式系统开发人员使用的小型、可移植、嵌入式SSL/TLS库。 wolfSSL 4.0.0中的tls13.c中的DoPreSharedKeys存在缓冲区溢出漏洞。攻击者可利用该漏洞实现远程代码执行。

Severity

高

Patch Name

wolfSSL缓冲区溢出漏洞（CNVD-2019-15933）的补丁

Patch Description

wolfSSL是一个旨在供嵌入式系统开发人员使用的小型、可移植、嵌入式SSL/TLS库。 wolfSSL 4.0.0中的tls13.c中的DoPreSharedKeys存在缓冲区溢出漏洞。攻击者可利用该漏洞实现远程代码执行。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/wolfSSL/wolfssl/pull/2239

Reference

https://web.nvd.nist.gov//vuln/detail/CVE-2019-11873

Impacted products

Name
wolfSSL wolfSSL 4.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-11873",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11873"
    }
  },
  "description": "wolfSSL\u662f\u4e00\u4e2a\u65e8\u5728\u4f9b\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u578b\u3001\u53ef\u79fb\u690d\u3001\u5d4c\u5165\u5f0fSSL/TLS\u5e93\u3002\n\nwolfSSL 4.0.0\u4e2d\u7684tls13.c\u4e2d\u7684DoPreSharedKeys\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u3002",
  "discovererName": "Robert Horr",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/wolfSSL/wolfssl/pull/2239",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-15933",
  "openTime": "2019-05-30",
  "patchDescription": "wolfSSL\u662f\u4e00\u4e2a\u65e8\u5728\u4f9b\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u578b\u3001\u53ef\u79fb\u690d\u3001\u5d4c\u5165\u5f0fSSL/TLS\u5e93\u3002\r\n\r\nwolfSSL 4.0.0\u4e2d\u7684tls13.c\u4e2d\u7684DoPreSharedKeys\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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": "wolfSSL\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-15933\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "wolfSSL wolfSSL 4.0.0"
  },
  "referenceLink": "https://web.nvd.nist.gov//vuln/detail/CVE-2019-11873",
  "serverity": "\u9ad8",
  "submitTime": "2019-05-23",
  "title": "wolfSSL\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-15933\uff09"
}

CVE-2019-11873 (GCVE-0-2019-11873)

Vulnerability from cvelistv5 – Published: 2019-05-23 12:54 – Updated: 2024-08-04 23:03

Summary

wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, total extensions length, PSK extension length, total identity length, and identity length contain their maximum value which is 2^16. The identity data field of the PSK extension of the packet contains the attack data, to be stored in the undefined memory (RAM) of the server. The size of the data is about 65 kB. Possibly the attacker can perform a remote code execution attack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://www.telekom.com/en/corporate-responsibili…	x_refsource_MISC
https://www.telekom.com/resource/blob/572524/1c89…	x_refsource_MISC
http://www.securityfocus.com/bid/108466	vdb-entryx_refsource_BID

Date Public

2019-05-15 00:00

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.

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.

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Action not permitted

CNVD-2019-15933

CVE-2019-11873 (GCVE-0-2019-11873)

Tags

Sightings

Nomenclature

Related by attack behaviour