Unknown
CVE-2019-1551
CVE-2019-1551
Description
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 (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t).
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CVSS V3 Severity and Metrics
General Information
Vendors
- canonical,
- debian,
- fedoraproject,
- openssl,
- opensuse,
- oracle,
- tenable
Products
- debian linux 10.0,
- debian linux 9.0,
- enterprise manager ops center 12.4.0.0,
- fedora 30,
- fedora 31,
- fedora 32,
- leap 15.1,
- log correlation engine,
- mysql enterprise monitor,
- openssl,
- peoplesoft enterprise peopletools 8.56,
- peoplesoft enterprise peopletools 8.57,
- peoplesoft enterprise peopletools 8.58,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 19.10
