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libgcrypt における暗号に関する脆弱性
Title libgcrypt における暗号に関する脆弱性
Summary

libgcrypt には、暗号に関する脆弱性が存在します。

Possible impacts 情報を取得される可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date June 29, 2017, midnight
Registration Date Oct. 29, 2018, 6:16 p.m.
Last Update Oct. 29, 2018, 6:16 p.m.
CVSS3.0 : 警告
Score 6.8
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS2.0 : 警告
Score 4.3
Vector AV:N/AC:M/Au:N/C:P/I:N/A:N
Affected System
Debian
Debian GNU/Linux 
Canonical
Ubuntu 
The GnuPG Project
Libgcrypt 1.7.8 未満
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2018年10月29日]
  掲載		 Oct. 29, 2018, 6:16 p.m.
NVD Vulnerability Information
CVE-2017-7526
Summary

libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.

Publication Date July 26, 2018, 10:29 p.m.
Registration Date Jan. 26, 2021, 1:28 p.m.
Last Update Nov. 21, 2024, 12:32 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* 1.7.8
Configuration2 or higher or less more than less than
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List