SB2017092620 - Input validation error in Randombit Botan
Published: September 26, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017092620
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2017-14737)
The vulnerability allows a local authenticated user to gain access to sensitive information.
A cryptographic cache-based side channel in the RSA implementation in Botan before 1.10.17, and 1.11.x and 2.x before 2.3.0, allows a local attacker to recover information about RSA secret keys, as demonstrated by CacheD. This occurs because an array is indexed with bits derived from a secret key.
Remediation
Install update from vendor's website.