OpensslCVELIST:CVE-2019-1551CVE-2019-1551 rsaz_512_sqr overflow bug on x86_64
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).
CNA Affected
[
{
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"status": "affected",
"version": "Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d)"
},
{
"status": "affected",
"version": "Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t)"
}
]
}
]References
lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html
packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html
git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=419102400a2811582a7a3d4a4e317d72e5ce0a8f
git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=f1c5eea8a817075d31e43f5876993c6710238c98
lists.debian.org/debian-lts-announce/2022/03/msg00023.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/
seclists.org/bugtraq/2019/Dec/39
seclists.org/bugtraq/2019/Dec/46
security.gentoo.org/glsa/202004-10
security.netapp.com/advisory/ntap-20191210-0001/
usn.ubuntu.com/4376-1/
usn.ubuntu.com/4504-1/
www.debian.org/security/2019/dsa-4594
www.debian.org/security/2021/dsa-4855
www.openssl.org/news/secadv/20191206.txt
www.oracle.com/security-alerts/cpuApr2021.html
www.oracle.com/security-alerts/cpujan2021.html
www.oracle.com/security-alerts/cpujul2020.html
www.tenable.com/security/tns-2019-09
www.tenable.com/security/tns-2020-03
www.tenable.com/security/tns-2020-11
www.tenable.com/security/tns-2021-10
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