CVE-2018-0732

Description (CNA)

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).

Affected (CNA)

CWE

No CWE identifiers supplied.

References

• https://lists.debian.org/debian-lts-announce/2018/07/msg00043.html
• http://www.securityfocus.com/bid/104442
• https://www.debian.org/security/2018/dsa-4355
• https://access.redhat.com/errata/RHSA-2018:2552
• https://security.gentoo.org/glsa/201811-03
• https://usn.ubuntu.com/3692-2/
• https://access.redhat.com/errata/RHSA-2018:2553
• https://access.redhat.com/errata/RHSA-2018:3505
• https://usn.ubuntu.com/3692-1/
• https://access.redhat.com/errata/RHSA-2018:3221
• https://www.debian.org/security/2018/dsa-4348
• http://www.securitytracker.com/id/1041090
• https://access.redhat.com/errata/RHSA-2019:1297
• https://access.redhat.com/errata/RHSA-2019:1296
• https://access.redhat.com/errata/RHSA-2019:1543
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/
• https://www.oracle.com/security-alerts/cpuapr2020.html
• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
• https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
• https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
• https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
• https://www.oracle.com/security-alerts/cpujan2021.html
• https://www.tenable.com/security/tns-2018-14
• https://securityadvisories.paloaltonetworks.com/Home/Detail/133
• https://www.tenable.com/security/tns-2018-13
• https://www.tenable.com/security/tns-2018-17
• https://www.tenable.com/security/tns-2018-12
• https://security.netapp.com/advisory/ntap-20181105-0001/
• https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
• https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3984ef0b72831da8b3ece4745cac4f8575b19098
• https://www.openssl.org/news/secadv/20180612.txt
• https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ea7abeeabf92b7aca160bdd0208636d4da69f4f4
• https://security.netapp.com/advisory/ntap-20190118-0002/
• https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf

ADP enrichment