| Bug ID | 1143532 |
|---|---|
| Summary | VUL-0: CVE-2019-14318: libcryptopp: timing side channel in ECDSA signature generation |
| Classification | openSUSE |
| Product | openSUSE Distribution |
| Version | Leap 15.0 |
| Hardware | Other |
| URL | https://smash.suse.de/issue/238345/ |
| OS | Other |
| Status | NEW |
| Severity | Normal |
| Priority | P5 - None |
| Component | Security |
| Assignee | pascal.bleser@opensuse.org |
| Reporter | atoptsoglou@suse.com |
| QA Contact | security-team@suse.de |
| Found By | Security Response Team |
| Blocker | --- |
CVE-2019-14318 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: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-14318 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14318 https://tches.iacr.org/index.php/TCHES/article/view/7337 https://eprint.iacr.org/2011/232.pdf