Channel and Path Errors Affecting libcrypto++ package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIAN8-LIBCRYPTO-458883
- published9 Aug 2019
- disclosed30 Jul 2019
Introduced: 30 Jul 2019
CVE-2019-14318 (opens in a new tab)How to fix?
There is no fixed version for Debian:8 libcrypto++.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcrypto++ package and not the libcrypto++ package as distributed by Debian.
See How to fix? for Debian:8 relevant fixed versions and status.
Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because 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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-14318
- https://github.com/weidai11/cryptopp/issues/869
- https://eprint.iacr.org/2011/232.pdf
- https://minerva.crocs.fi.muni.cz/
- https://tches.iacr.org/index.php/TCHES/article/view/7337
- http://www.openwall.com/lists/oss-security/2019/10/02/2
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00066.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-14318