CVE-2018-0732
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).
- Published date
- 2018-06-12T13:29Z
- Last modification date
- 2022-08-16T13:00Z
- Assigner
- openssl-security@openssl.org
- Problem type
- CWE-320
Impact
- CVSS v3 vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Name | URL | Source | Tags |
|---|---|---|---|
| https://www.openssl.org/news/secadv/20180612.txt | https://www.openssl.org/news/secadv/20180612.txt | CONFIRM | Vendor Advisory |
| https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4 | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4 | CONFIRM | Patch, Third Party Advisory |
| https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098 | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098 | CONFIRM | Patch, Third Party Advisory |
| 1041090 | http://www.securitytracker.com/id/1041090 | SECTRACK | Third Party Advisory, VDB Entry |
| 104442 | http://www.securityfocus.com/bid/104442 | BID | Third Party Advisory, VDB Entry |
| USN-3692-2 | https://usn.ubuntu.com/3692-2/ | UBUNTU | Third Party Advisory |
| USN-3692-1 | https://usn.ubuntu.com/3692-1/ | UBUNTU | Third Party Advisory |
| [debian-lts-announce] 20180728 [SECURITY] [DLA 1449-1] openssl security update | https://lists.debian.org/debian-lts-announce/2018/07/msg00043.html | MLIST | Third Party Advisory |
| RHSA-2018:2553 | https://access.redhat.com/errata/RHSA-2018:2553 | REDHAT | Third Party Advisory |
| RHSA-2018:2552 | https://access.redhat.com/errata/RHSA-2018:2552 | REDHAT | Third Party Advisory |
| https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ | https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ | CONFIRM | Vendor Advisory |
| https://www.tenable.com/security/tns-2018-12 | https://www.tenable.com/security/tns-2018-12 | CONFIRM | Third Party Advisory |
| https://securityadvisories.paloaltonetworks.com/Home/Detail/133 | https://securityadvisories.paloaltonetworks.com/Home/Detail/133 | CONFIRM | Third Party Advisory |
| http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html | http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html | CONFIRM | Patch, Third Party Advisory |
| https://www.tenable.com/security/tns-2018-14 | https://www.tenable.com/security/tns-2018-14 | CONFIRM | Third Party Advisory |
| https://www.tenable.com/security/tns-2018-13 | https://www.tenable.com/security/tns-2018-13 | CONFIRM | Third Party Advisory |
| RHSA-2018:3221 | https://access.redhat.com/errata/RHSA-2018:3221 | REDHAT | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20181105-0001/ | https://security.netapp.com/advisory/ntap-20181105-0001/ | CONFIRM | Third Party Advisory |
| RHSA-2018:3505 | https://access.redhat.com/errata/RHSA-2018:3505 | REDHAT | Third Party Advisory |
| GLSA-201811-03 | https://security.gentoo.org/glsa/201811-03 | GENTOO | Third Party Advisory |
| DSA-4348 | https://www.debian.org/security/2018/dsa-4348 | DEBIAN | Third Party Advisory |
| DSA-4355 | https://www.debian.org/security/2018/dsa-4355 | DEBIAN | Third Party Advisory |
| https://www.tenable.com/security/tns-2018-17 | https://www.tenable.com/security/tns-2018-17 | CONFIRM | Third Party Advisory |
| https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html | https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html | CONFIRM | Patch, Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20190118-0002/ | https://security.netapp.com/advisory/ntap-20190118-0002/ | CONFIRM | Third Party Advisory |
| https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html | https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html | MISC | Patch, Third Party Advisory |
| RHSA-2019:1297 | https://access.redhat.com/errata/RHSA-2019:1297 | REDHAT | Third Party Advisory |
| RHSA-2019:1296 | https://access.redhat.com/errata/RHSA-2019:1296 | REDHAT | Third Party Advisory |
| RHSA-2019:1543 | https://access.redhat.com/errata/RHSA-2019:1543 | REDHAT | Third Party Advisory |
| https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html | https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html | MISC | Patch, Third Party Advisory |
| FEDORA-2019-db06efdea1 | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/ | FEDORA | Mailing List, Third Party Advisory |
| FEDORA-2019-00c25b9379 | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/ | FEDORA | Mailing List, Third Party Advisory |
| FEDORA-2019-9a0a7c0986 | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/ | FEDORA | Third Party Advisory |
| https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html | https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html | MISC | Patch, Third Party Advisory |
| N/A | https://www.oracle.com/security-alerts/cpuapr2020.html | N/A | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujan2021.html | https://www.oracle.com/security-alerts/cpujan2021.html | MISC | Third Party Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf | https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf | CONFIRM | Third Party Advisory |