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CVE-2017-7526

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CVE-2017-7526

Published: Jul 26, 2018

Modified: Dec 17, 2025

PUBLISHED

CVSS v3.0

6.1

MEDIUM

Description

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.

VendorProductVersions

GnuPG

libgcrypt

affected
1.7.8

Weaknesses (CWE)

CWE-200

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

References

USN-3733-1
vendor-advisory
x_refsource_UBUNTU
1038915
vdb-entry
x_refsource_SECTRACK
DSA-3960
vendor-advisory
x_refsource_DEBIAN
DSA-3901
vendor-advisory
x_refsource_DEBIAN
USN-3733-2
vendor-advisory
x_refsource_UBUNTU
99338
vdb-entry
x_refsource_BID

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