What’s Vulnerable › Vulnerabilities

CVE-2015-2141

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-07-01 · updated 2026-06-17
• Weakness: CWE-200

Description

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 products

• Cryptopp Crypto++ Library: 5.6.2
• Opensuse: 13.1, 13.2

References

• http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html
• http://sourceforge.net/p/cryptopp/code/542/
• http://www.debian.org/security/2015/dsa-3296
• http://www.securityfocus.com/bid/75467
• https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff
• http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html
• http://sourceforge.net/p/cryptopp/code/542/
• http://www.debian.org/security/2015/dsa-3296
• http://www.securityfocus.com/bid/75467
• https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff

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