VulnerabilityModified
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.
MEDIUM 5.0EPSS 2.88%
Does this matter?
Lower severity and a low EPSS score (2.88%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 2.88% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- cryptopp/crypto\+\+ library · opensuse/opensuse
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.