cnvd - cnvd-2017-10541

CNVD-2017-10541

Vulnerability from cnvd - Published: 2017-06-21

Title

Libgcrypt 'cipher/ecc-eddsa.c'信息泄露漏洞

Description

Libgcrypt是GNU计划开发的一个基于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 1.7.7之前的版本中存在信息泄露漏洞。攻击者可利用该漏洞获取密钥。

Severity

中

Patch Name

Libgcrypt 'cipher/ecc-eddsa.c'信息泄露漏洞的补丁

Patch Description

Libgcrypt是GNU计划开发的一个基于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 1.7.7之前的版本中存在信息泄露漏洞。攻击者可利用该漏洞获取密钥。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56

Reference

https://bugzilla.suse.com/show_bug.cgi?id=1042326

Impacted products

Name
GNU Libgcrypt <1.7.7

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "99046"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-9526"
    }
  },
  "description": "Libgcrypt\u662fGNU\u8ba1\u5212\u5f00\u53d1\u7684\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 1.7.7\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5bc6\u94a5\u3002",
  "discovererName": "GNU",
  "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://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-10541",
  "openTime": "2017-06-21",
  "patchDescription": "Libgcrypt\u662fGNU\u8ba1\u5212\u5f00\u53d1\u7684\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 1.7.7\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5bc6\u94a5\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 \u0027cipher/ecc-eddsa.c\u0027\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "GNU Libgcrypt \u003c1.7.7"
  },
  "referenceLink": "https://bugzilla.suse.com/show_bug.cgi?id=1042326",
  "serverity": "\u4e2d",
  "submitTime": "2017-06-13",
  "title": "Libgcrypt \u0027cipher/ecc-eddsa.c\u0027\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2017-9526 (GCVE-0-2017-9526)

Vulnerability from cvelistv5 – Published: 2017-06-11 02:00 – Updated: 2024-08-05 17:11

Summary

In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://www.oracle.com/technetwork/security-adviso…	x_refsource_CONFIRM
	https://www.oracle.com/technetwork/security-advis…	x_refsource_CONFIRM
	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcr…	x_refsource_CONFIRM
	http://www.debian.org/security/2017/dsa-3880	vendor-advisoryx_refsource_DEBIAN
	http://www.securityfocus.com/bid/99046	vdb-entryx_refsource_BID
	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcr…	x_refsource_CONFIRM
	https://bugzilla.suse.com/show_bug.cgi?id=1042326	x_refsource_CONFIRM

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-2017-10541

CVE-2017-9526 (GCVE-0-2017-9526)

Tags

Sightings

Nomenclature