Medium severity5.3NVD Advisory· Published Dec 6, 2019· Updated Jun 17, 2026
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
51Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d)+ 2 more
- (no CPE)range: Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d)
- (no CPE)range: 1.1.1-1.1.1d, 1.0.2-1.0.2t
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*range: >=1.0.2,<=1.0.2t
- osv-coords33 versionspkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP1pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/openssl&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/openssl&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openssl&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/openssl&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/opensuse/openssl-1_0_0&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/openssl-1_1&distro=openSUSE%20Tumbleweedpkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/openssl&distro=HPE%20Helion%20OpenStack%208pkg:rpm/opensuse/openssl-1_1&distro=openSUSE%20Leap%2015.1
< 1.0.2j-60.60.1+ 32 more
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.1.0i-4.27.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.25.1
- (no CPE)range: < 1.0.2p-3.25.1
- (no CPE)range: < 1.0.2p-3.25.1
- (no CPE)range: < 1.1.0i-14.6.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2p-3.14.1
- (no CPE)range: < 1.0.2u-6.2
- (no CPE)range: < 1.1.1l-1.2
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.1.1d-2.20.1
- (no CPE)range: < 1.0.2j-60.60.1
- (no CPE)range: < 1.1.0i-lp151.8.6.1
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*Range: <=4.0.12
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
24- www.oracle.com/security-alerts/cpuApr2021.htmlnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpujan2021.htmlnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpujul2020.htmlnvdPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.htmlnvdMailing ListThird Party Advisory
- packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.htmlnvdThird Party AdvisoryVDB Entry
- lists.debian.org/debian-lts-announce/2022/03/msg00023.htmlnvdMailing ListThird Party Advisory
- seclists.org/bugtraq/2019/Dec/39nvdMailing ListThird Party Advisory
- seclists.org/bugtraq/2019/Dec/46nvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202004-10nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20191210-0001/nvdThird Party Advisory
- usn.ubuntu.com/4376-1/nvdThird Party Advisory
- usn.ubuntu.com/4504-1/nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4594nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4855nvdThird Party Advisory
- www.openssl.org/news/secadv/20191206.txtnvdVendor Advisory
- www.tenable.com/security/tns-2019-09nvdThird Party Advisory
- www.tenable.com/security/tns-2020-03nvdThird Party Advisory
- www.tenable.com/security/tns-2020-11nvdThird Party Advisory
- www.tenable.com/security/tns-2021-10nvdThird Party Advisory
- git.openssl.org/gitweb/nvd
- git.openssl.org/gitweb/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/nvd
News mentions
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