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).
References
Configurations
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History
07 Nov 2023, 03:08
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Information
Published : 2019-12-06 18:15
Updated : 2024-02-28 17:28
NVD link : CVE-2019-1551
Mitre link : CVE-2019-1551
CVE.ORG link : CVE-2019-1551
JSON object : View
Products Affected
oracle
- enterprise_manager_ops_center
- mysql_enterprise_monitor
- peoplesoft_enterprise_peopletools
debian
- debian_linux
opensuse
- leap
canonical
- ubuntu_linux
tenable
- log_correlation_engine
openssl
- openssl
fedoraproject
- fedora
CWE
CWE-190
Integer Overflow or Wraparound