Input validation error in Botan - CVE-2017-14737
Published: September 26, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38195
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-14737
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Botan
Arch Linux
Fedora
botan
Arch Linux
Fedora
botan
How to mitigate CVE-2017-14737
Install update from vendor's website.
botan - addressed in versions 1.10.17-1.el7, 1.10.17-1.fc25, 1.10.17-1.fc26, 1.10.17-1.fc27