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CVE-2019-1551 is a medium severity vulnerability with a CVSS score of 5.3. Exploits are available; patches have been released and should be applied urgently.
Lower probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e-dev (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u-dev (Affected 1.0.2-1.0.2t).
| Vendor | Product |
|---|---|
| Fedoraproject | Fedora |
| Oracle |
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
| Peoplesoft Enterprise Peopletools |
| Oracle | Enterprise Manager Ops Center |
| Opensuse | Leap |
| Canonical | Ubuntu Linux |
| Debian | Debian Linux |
| OpenSSL | OpenSSL |
| Tenable | Log Correlation Engine |
| Oracle | MySQL Enterprise Monitor |