Vulnerability-Lookup

CNVD-2015-02743

Vulnerability from cnvd - Published: 2015-04-28

Title

Libgcrypt本地信息泄露漏洞

Description

Libgcrypt是一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。 Libgcrypt 1.6.3之前版本中存在本地信息泄露漏洞。本地攻击者可利用该漏洞泄露敏感信息。

Severity

低

Patch Name

Libgcrypt本地信息泄露漏洞的补丁

Patch Description

Libgcrypt是一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。Libgcrypt 1.6.3之前版本中存在本地信息泄露漏洞。本地攻击者可利用该漏洞泄露敏感信息。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://www.linuxfromscratch.org/blfs/view/svn/general/libgcrypt.html

Reference

http://www.securityfocus.com/bid/73064

Impacted products

Name
Libgcrypt Libgcrypt <1.6.3

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "73064"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-0837"
    }
  },
  "description": "Libgcrypt\u662f\u4e00\u4e2a\u57fa\u4e8eGnuPG\u4ee3\u7801\u7684\u901a\u7528\u52a0\u5bc6\u5e93\u3002\u8be5\u5e93\u5b9e\u73b0\u4e86\u5404\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u516c\u5f00\u5bc6\u94a5\u7b97\u6cd5\u7b49\u3002\r\n\r\nLibgcrypt 1.6.3\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u672c\u5730\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "libgcrypt",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://www.linuxfromscratch.org/blfs/view/svn/general/libgcrypt.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02743",
  "openTime": "2015-04-28",
  "patchDescription": "Libgcrypt\u662f\u4e00\u4e2a\u57fa\u4e8eGnuPG\u4ee3\u7801\u7684\u901a\u7528\u52a0\u5bc6\u5e93\u3002\u8be5\u5e93\u5b9e\u73b0\u4e86\u5404\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u516c\u5f00\u5bc6\u94a5\u7b97\u6cd5\u7b49\u3002Libgcrypt 1.6.3\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u672c\u5730\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732\u654f\u611f\u4fe1\u606f\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": "Libgcrypt\u672c\u5730\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Libgcrypt Libgcrypt \u003c1.6.3"
  },
  "referenceLink": "http://www.securityfocus.com/bid/73064",
  "serverity": "\u4f4e",
  "submitTime": "2015-04-27",
  "title": "Libgcrypt\u672c\u5730\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2015-0837 (GCVE-0-2015-0837)

Vulnerability from cvelistv5 – Published: 2019-11-29 21:10 – Updated: 2024-08-06 04:26

Summary

The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."

Severity

No CVSS data available.

CWE

Other

Assigner

debian mitre root

References

5 references

URL	Tags
http://www.debian.org/security/2015/dsa-3184	x_refsource_MISC
http://www.debian.org/security/2015/dsa-3185	x_refsource_MISC
https://lists.gnupg.org/pipermail/gnupg-announce/…	x_refsource_CONFIRM
https://lists.gnupg.org/pipermail/gnupg-announce/…	x_refsource_CONFIRM
https://ieeexplore.ieee.org/document/7163050	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
GNU	Libgcrypt	Affected: before 1.6.3
GNU	GnuPG	Affected: before 1.4.19

Date Public

2012-05-23 00:00

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-06T04:26:11.067Z",
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            "url": "http://www.debian.org/security/2015/dsa-3184"
          },
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            "url": "http://www.debian.org/security/2015/dsa-3185"
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            "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html"
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            "url": "https://ieeexplore.ieee.org/document/7163050"
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      }
    ],
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        }
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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.

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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-2015-02743

CVE-2015-0837 (GCVE-0-2015-0837)

Tags

Sightings

Nomenclature

Related by attack behaviour