Information disclosure in Botan - CVE-2016-8871
Published: October 28, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU40065
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-8871
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Randombit
Affected software:
Botan
Botan
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.
How to mitigate CVE-2016-8871
Install update from vendor's website.