Vulnerability Monitor

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CVE-2015-2141

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.

Security Impact Summary

CVE-2015-2141 is a security vulnerability that . Impacting 2 products from cryptopp, from opensuse organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-07-01T14:59:06.033

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cryptopp	crypto\+\+_library	5.6.2	Yes
Operating System	opensuse	opensuse	13.1	Yes
Operating System	opensuse	opensuse	13.2	Yes

References

http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html ([email protected])
http://sourceforge.net/p/cryptopp/code/542/ ([email protected])
http://www.debian.org/security/2015/dsa-3296 ([email protected])
http://www.securityfocus.com/bid/75467 ([email protected])
https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff ([email protected])
http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/p/cryptopp/code/542/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3296 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/75467 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cryptopp's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.