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CVE-2019-1551

MEDIUM
5.3

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).

Details CVE

Score CVSS v3.15.3
SeveriteMEDIUM
Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vecteur d'attaqueNETWORK
ComplexiteLOW
Privileges requisNONE
Interaction utilisateurNONE
Publie12/6/2019
Derniere modification11/21/2024
Sourcenvd
Observations honeypot0

Produits affectes

canonical:ubuntu_linuxdebian:debian_linuxfedoraproject:fedoraopenssl:opensslopensuse:leaporacle:enterprise_manager_ops_centeroracle:mysql_enterprise_monitororacle:peoplesoft_enterprise_peopletoolstenable:log_correlation_engine

Faiblesses (CWE)

CWE-190

References

https://seclists.org/bugtraq/2019/Dec/39(openssl-security@openssl.org)
https://seclists.org/bugtraq/2019/Dec/46(openssl-security@openssl.org)
https://security.gentoo.org/glsa/202004-10(openssl-security@openssl.org)
https://usn.ubuntu.com/4376-1/(openssl-security@openssl.org)
https://usn.ubuntu.com/4504-1/(openssl-security@openssl.org)
https://www.debian.org/security/2019/dsa-4594(openssl-security@openssl.org)
https://www.debian.org/security/2021/dsa-4855(openssl-security@openssl.org)
https://www.tenable.com/security/tns-2019-09(openssl-security@openssl.org)
https://www.tenable.com/security/tns-2020-03(openssl-security@openssl.org)
https://www.tenable.com/security/tns-2020-11(openssl-security@openssl.org)
https://www.tenable.com/security/tns-2021-10(openssl-security@openssl.org)
https://seclists.org/bugtraq/2019/Dec/39(af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Dec/46(af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202004-10(af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20191210-0001/(af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4376-1/(af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4504-1/(af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4594(af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2021/dsa-4855(af854a3a-2127-422b-91ae-364da2661108)
https://www.openssl.org/news/secadv/20191206.txt(af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpuApr2021.html(af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujan2021.html(af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujul2020.html(af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/security/tns-2019-09(af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/security/tns-2020-03(af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/security/tns-2020-11(af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/security/tns-2021-10(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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