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Vulnerability details: VCID-9cyz-en38-aaad
Vulnerability ID VCID-9cyz-en38-aaad
Aliases CVE-2018-0732
VC-OPENSSL-20180612-CVE-2018-0732
Summary 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).
Status Published
Exploitability 2.0
Weighted Severity 8.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-320 Key Management Errors
CWE-325 Missing Cryptographic Step
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-0732.html
cvssv3.1 7.8 https://access.redhat.com/errata/RHSA-2018:3505
generic_textual HIGH https://access.redhat.com/errata/RHSA-2018:3505
rhas Important https://access.redhat.com/errata/RHSA-2019:1543
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0732.json
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.04791 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.05229 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.05229 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.05229 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.5946 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.5946 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.5946 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.5946 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.5946 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.70639 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
epss 0.81092 https://api.first.org/data/v1/epss?cve=CVE-2018-0732
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1591100
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0732
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0734
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0735
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0737
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5407
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Medium https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-0732
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0732
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0732
archlinux Low https://security.archlinux.org/AVG-674
archlinux Low https://security.archlinux.org/AVG-675
generic_textual Low https://ubuntu.com/security/notices/USN-3692-1
generic_textual Low https://ubuntu.com/security/notices/USN-3692-2
generic_textual Low https://www.openssl.org/news/secadv/20180612.txt
cvssv3.1 9.8 https://www.oracle.com/security-alerts/cpuapr2020.html
generic_textual CRITICAL https://www.oracle.com/security-alerts/cpuapr2020.html
cvssv3.1 9.8 https://www.oracle.com/security-alerts/cpujan2021.html
generic_textual CRITICAL https://www.oracle.com/security-alerts/cpujan2021.html
cvssv3.1 9.8 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
generic_textual LOW https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
cvssv3.1 9.8 https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
generic_textual CRITICAL https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
cvssv3.1 5.9 https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
generic_textual MODERATE https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
cvssv3.1 9.8 https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
generic_textual CRITICAL https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
cvssv3.1 5.9 http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
generic_textual MODERATE http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-0732.html
https://access.redhat.com/errata/RHSA-2018:2552
https://access.redhat.com/errata/RHSA-2018:2553
https://access.redhat.com/errata/RHSA-2018:3221
https://access.redhat.com/errata/RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2019:1296
https://access.redhat.com/errata/RHSA-2019:1297
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0732.json
https://api.first.org/data/v1/epss?cve=CVE-2018-0732
https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0732
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0734
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0735
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0737
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5407
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/openssl/openssl/commit/3984ef0b72831da8b3ece4745cac4f8575b19098
https://github.com/openssl/openssl/commit/ea7abeeabf92b7aca160bdd0208636d4da69f4f4
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3984ef0b72831da8b3ece4745cac4f8575b19098
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ea7abeeabf92b7aca160bdd0208636d4da69f4f4
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4
https://lists.debian.org/debian-lts-announce/2018/07/msg00043.html
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/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/
https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
https://securityadvisories.paloaltonetworks.com/Home/Detail/133
https://security.gentoo.org/glsa/201811-03
https://security.netapp.com/advisory/ntap-20181105-0001/
https://security.netapp.com/advisory/ntap-20190118-0002/
https://ubuntu.com/security/notices/USN-3692-1
https://ubuntu.com/security/notices/USN-3692-2
https://usn.ubuntu.com/3692-1/
https://usn.ubuntu.com/3692-2/
https://www.debian.org/security/2018/dsa-4348
https://www.debian.org/security/2018/dsa-4355
https://www.openssl.org/news/secadv/20180612.txt
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
https://www.tenable.com/security/tns-2018-12
https://www.tenable.com/security/tns-2018-13
https://www.tenable.com/security/tns-2018-14
https://www.tenable.com/security/tns-2018-17
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/104442
http://www.securitytracker.com/id/1041090
1591100 https://bugzilla.redhat.com/show_bug.cgi?id=1591100
AVG-674 https://security.archlinux.org/AVG-674
AVG-675 https://security.archlinux.org/AVG-675
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2018-0732 https://nvd.nist.gov/vuln/detail/CVE-2018-0732
RHSA-2019:1543 https://access.redhat.com/errata/RHSA-2019:1543
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/errata/RHSA-2018:3505
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0732.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0732
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0732
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0732
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/security-alerts/cpuapr2020.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/security-alerts/cpujan2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.92913
EPSS Score 0.04791
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.