Vulnerability-Lookup

CNVD-2021-14754

Vulnerability from cnvd - Published: 2021-03-05

Title

OpenSSL输入验证错误漏洞

Description

OpenSSL是用于传输层安全性（TLS）和安全套接字层（SSL）协议的功能强大的，商业级且功能齐全的工具包。它也是一个通用密码库。 OpenSSL public API 存在输入验证错误漏洞，该漏洞源于X509_issuer_and_serial_hash函数不能正确处理解析issuer字段时可能发生的任何错误。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

OpenSSL输入验证错误漏洞的补丁

Patch Description

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.openssl.org/news/secadv/20210216.txt

Reference

https://www.debian.org/security/2021/dsa-4855; https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=947949; https://security-tracker.debian.org/tracker/CVE-2019-1551; https://security-tracker.debian.org/tracker/CVE-2021-23840; https://security-tracker.debian.org/tracker/CVE-2021-23841

Impacted products

Name
OpenSSL Project OpenSSL 无

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2021-23841",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-23841"
    }
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  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.openssl.org/news/secadv/20210216.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-14754",
  "openTime": "2021-03-05",
  "patchDescription": "OpenSSL\u662f\u7528\u4e8e\u4f20\u8f93\u5c42\u5b89\u5168\u6027\uff08TLS\uff09\u548c\u5b89\u5168\u5957\u63a5\u5b57\u5c42\uff08SSL\uff09\u534f\u8bae\u7684\u529f\u80fd\u5f3a\u5927\u7684\uff0c\u5546\u4e1a\u7ea7\u4e14\u529f\u80fd\u9f50\u5168\u7684\u5de5\u5177\u5305\u3002\u5b83\u4e5f\u662f\u4e00\u4e2a\u901a\u7528\u5bc6\u7801\u5e93\u3002\r\n\r\nOpenSSL public API \u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eX509_issuer_and_serial_hash\u51fd\u6570\u4e0d\u80fd\u6b63\u786e\u5904\u7406\u89e3\u6790issuer\u5b57\u6bb5\u65f6\u53ef\u80fd\u53d1\u751f\u7684\u4efb\u4f55\u9519\u8bef\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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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  "serverity": "\u4e2d",
  "submitTime": "2021-03-04",
  "title": "OpenSSL\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-23841 (GCVE-0-2021-23841)

Vulnerability from cvelistv5 – Published: 2021-02-16 16:55 – Updated: 2024-09-16 22:39

Title

Null pointer deref in X509_issuer_and_serial_hash()

Summary

The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-26 20:18 UTC

CWE

NULL pointer dereference

Assigner

openssl CNA under the mitre root

CNA scorecard B 78/100 over 43 records in the last 180 days details

References

22 references

URL	Tags
https://www.openssl.org/news/secadv/20210216.txt
https://git.openssl.org/gitweb/?p=openssl.git%3Ba…
https://git.openssl.org/gitweb/?p=openssl.git%3Ba…
https://www.debian.org/security/2021/dsa-4855	vendor-advisory
https://security.gentoo.org/glsa/202103-03	vendor-advisory
http://seclists.org/fulldisclosure/2021/May/70	mailing-list
http://seclists.org/fulldisclosure/2021/May/68	mailing-list
http://seclists.org/fulldisclosure/2021/May/67	mailing-list
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.tenable.com/security/tns-2021-09
https://security.netapp.com/advisory/ntap-2021051…
https://security.netapp.com/advisory/ntap-2021021…
https://www.tenable.com/security/tns-2021-03
https://support.apple.com/kb/HT212529
https://support.apple.com/kb/HT212528
https://support.apple.com/kb/HT212534
https://www.oracle.com//security-alerts/cpujul2021.html
https://kb.pulsesecure.net/articles/Pulse_Securit…
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://cert-portal.siemens.com/productcert/pdf/s…
https://security.netapp.com/advisory/ntap-2024062…

Impacted products

1 product

Vendor	Product	Version
OpenSSL	OpenSSL	Affected: Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i) Affected: Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x)

Date Public

2021-02-16 00:00

Credits

Tavis Ormandy (Google)

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.

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.

Action not permitted

CNVD-2021-14754

CVE-2021-23841 (GCVE-0-2021-23841)

Tags

Sightings

Nomenclature

Related by attack behaviour