Information disclosure - CVE-2015-2141
Published: July 1, 2015 / Updated: August 3, 2020
Vulnerability identifier: #VU33072
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-2141
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm, which allows remote attackers to obtain private keys via a timing attack.
Affected software
crypto++ (Alpine package)
cryptopp
Fedora
cryptopp
Fedora
How to mitigate CVE-2015-2141
Install update from vendor's website.
crypto++ (Alpine package) - addressed in versions 5.6.2-r2, 5.6.3-r0
cryptopp - addressed in versions 5.6.2-9.el6, 5.6.2-9.el7, 5.6.2-9.fc21, 5.6.2-9.fc22
cryptopp - addressed in versions 5.6.2-9.el6, 5.6.2-9.el7, 5.6.2-9.fc21, 5.6.2-9.fc22