Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2022-48570 CVE-2019-14318 |
CWE-ID | CWE-385 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Crypto++ Universal components / Libraries / Libraries used by multiple products |
Vendor | cryptopp.com |
Security Bulletin
This security bulletin contains information about 1 vulnerabilities.
Updated: 22.12.2020
Added information about the patched version, changed bulletin status to patched.
Updated: 03.01.2021
The newly released version Crypto++ 8.4 is vulnerable to this issue. The Crypto++ 8.4 release reverted the changes for constant-time elliptic curve algorithms. The revert reactivated CVE-2019-14318.
EUVDB-ID: #VU23452
Risk: Low
CVSSv3.1: 2.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-48570,CVE-2019-14318
CWE-ID:
CWE-385 - Covert Timing Channel
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information within the timing side channel in ECDSA signature generation. A local user with ability to measure the duration of hundreds to thousands of signing operations can compute the private key used.
MitigationInstall update from vendor's website.
Vulnerable software versionsCrypto++: 5.0 - 8.4.0
External linkshttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00066.html
http://eprint.iacr.org/2011/232.pdf
http://github.com/weidai11/cryptopp/issues/869
http://tches.iacr.org/index.php/TCHES/article/view/7337
http://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_3_0
http://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.