High severity7.5NVD Advisory· Published Jun 12, 2018· Updated Jun 17, 2026
CVE-2018-0732
CVE-2018-0732
Description
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
541.1.0 - 1.1.0h, 1.0.2 - 1.0.2o+ 1 more
- (no CPE)range: 1.1.0 - 1.1.0h, 1.0.2 - 1.0.2o
- (no CPE)range: Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)
- osv-coords52 versionspkg:rpm/opensuse/openssl-1_0_0&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/openssl-1_1&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/virtualbox&distro=openSUSE%20Tumbleweedpkg:rpm/suse/compat-openssl097g&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/compat-openssl098&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/compat-openssl098&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2012pkg:rpm/suse/compat-openssl098&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/compat-openssl098&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/compat-openssl098&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/firefox-atk&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-cairo&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-gdk-pixbuf&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-glib2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-harfbuzz&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-libffi&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-libffi-gcc5&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-pango&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLED&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/nodejs4&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/nodejs4&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs6&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/nodejs6&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs6&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/nodejs6&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015pkg:rpm/suse/openssl-1_0_0&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015pkg:rpm/suse/openssl-1_1&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/openssl1&distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITYpkg:rpm/suse/openssl&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/openssl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/openssl&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/openssl&distro=SUSE%20Studio%20Onsite%201.3
< 1.0.2u-6.2+ 51 more
- (no CPE)range: < 1.0.2u-6.2
- (no CPE)range: < 1.1.1l-1.2
- (no CPE)range: < 6.1.26-3.2
- (no CPE)range: < 0.9.7g-146.22.51.5.1
- (no CPE)range: < 0.9.8j-106.6.1
- (no CPE)range: < 0.9.8j-106.6.1
- (no CPE)range: < 0.9.8j-106.6.1
- (no CPE)range: < 0.9.8j-106.6.1
- (no CPE)range: < 0.9.8j-106.6.1
- (no CPE)range: < 2.26.1-2.8.4
- (no CPE)range: < 1.15.10-2.13.4
- (no CPE)range: < 2.36.11-2.8.4
- (no CPE)range: < 2.54.3-2.14.7
- (no CPE)range: < 3.10.9-2.15.3
- (no CPE)range: < 1.7.5-2.7.4
- (no CPE)range: < 3.2.1.git259-2.3.3
- (no CPE)range: < 5.3.1+r233831-14.1
- (no CPE)range: < 1.40.14-2.7.4
- (no CPE)range: < 68-21.9.8
- (no CPE)range: < 68.2.0-78.51.4
- (no CPE)range: < 4.21-29.6.1
- (no CPE)range: < 3.45-38.9.3
- (no CPE)range: < 4.9.1-15.14.1
- (no CPE)range: < 4.9.1-15.14.1
- (no CPE)range: < 6.14.4-11.18.1
- (no CPE)range: < 6.14.4-11.18.1
- (no CPE)range: < 6.14.4-11.18.1
- (no CPE)range: < 6.14.4-11.18.1
- (no CPE)range: < 8.11.4-3.8.2
- (no CPE)range: < 1.0.2n-3.3.1
- (no CPE)range: < 1.1.0h-4.3.1
- (no CPE)range: < 1.0.1g-0.58.12.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.1.0i-3.3.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 1.0.1i-54.14.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.1i-27.34.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 1.0.1i-54.14.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 0.9.8j-0.106.12.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 1.0.2j-60.30.1
- (no CPE)range: < 0.9.8j-0.106.12.1
Patches
Vulnerability mechanics
References
37- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlnvdPatchThird Party Advisory
- www.securityfocus.com/bid/104442nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1041090nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:2552nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2553nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3221nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3505nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:1296nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:1297nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:1543nvdThird Party Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-419820.pdfnvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/07/msg00043.htmlnvdThird Party Advisory
- nodejs.org/en/blog/vulnerability/august-2018-security-releases/nvdVendor Advisory
- security.gentoo.org/glsa/201811-03nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20181105-0001/nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20190118-0002/nvdThird Party Advisory
- securityadvisories.paloaltonetworks.com/Home/Detail/133nvdThird Party Advisory
- usn.ubuntu.com/3692-1/nvdThird Party Advisory
- usn.ubuntu.com/3692-2/nvdThird Party Advisory
- www.debian.org/security/2018/dsa-4348nvdThird Party Advisory
- www.debian.org/security/2018/dsa-4355nvdThird Party Advisory
- www.openssl.org/news/secadv/20180612.txtnvdVendor Advisory
- www.oracle.com/security-alerts/cpuapr2020.htmlnvdThird Party Advisory
- www.oracle.com/security-alerts/cpujan2021.htmlnvdThird Party Advisory
- www.tenable.com/security/tns-2018-12nvdThird Party Advisory
- www.tenable.com/security/tns-2018-13nvdThird Party Advisory
- www.tenable.com/security/tns-2018-14nvdThird Party Advisory
- www.tenable.com/security/tns-2018-17nvdThird Party Advisory
- git.openssl.org/gitweb/nvd
- git.openssl.org/gitweb/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/nvd
News mentions
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