Search for vulnerabilities
Vulnerability details: VCID-gcj5-rq6m-gba3
Vulnerability ID VCID-gcj5-rq6m-gba3
Aliases CVE-2018-0737
Summary The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-327 Use of a Broken or Risky Cryptographic Algorithm
CWE-385 Covert Timing Channel
System Score Found at
cvssv3 3.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0737.json
epss 0.16039 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.16039 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.16039 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.16039 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.16039 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
epss 0.28585 https://api.first.org/data/v1/epss?cve=CVE-2018-0737
cvssv3 4.7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-0737
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-0737
archlinux Low https://security.archlinux.org/AVG-674
archlinux Low https://security.archlinux.org/AVG-675
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:3221
https://access.redhat.com/errata/RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2019:3932
https://access.redhat.com/errata/RHSA-2019:3933
https://access.redhat.com/errata/RHSA-2019:3935
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0737.json
https://api.first.org/data/v1/epss?cve=CVE-2018-0737
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://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=349a41da1ad88ad87825414752a8ff5fdd6a6c3f
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=6939eab03a6e23d2bd2c3f5e34fe1d48e542e787
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://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
https://securityadvisories.paloaltonetworks.com/Home/Detail/133
https://security.gentoo.org/glsa/201811-21
https://security.netapp.com/advisory/ntap-20180726-0003/
https://www.debian.org/security/2018/dsa-4348
https://www.debian.org/security/2018/dsa-4355
https://www.openssl.org/news/secadv/20180416.txt
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com//security-alerts/cpujul2021.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.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/103766
http://www.securitytracker.com/id/1040685
1568253 https://bugzilla.redhat.com/show_bug.cgi?id=1568253
895844 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895844
AVG-674 https://security.archlinux.org/AVG-674
AVG-675 https://security.archlinux.org/AVG-675
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: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:*:*:*:*:*:*:*
CVE-2018-0737 https://nvd.nist.gov/vuln/detail/CVE-2018-0737
USN-3628-1 https://usn.ubuntu.com/3628-1/
USN-3628-2 https://usn.ubuntu.com/3628-2/
USN-3692-1 https://usn.ubuntu.com/3692-1/
USN-3692-2 https://usn.ubuntu.com/3692-2/
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0737.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:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N 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:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0737
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:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0737
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 0.94547
EPSS Score 0.16039
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:36:01.767230+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3628-1/ 37.0.0