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OpensslCVE-2018-0732

HistoryJun 12, 2018 - 1:29 p.m.

CVE-2018-0732

2018-06-1213:29:00

CWE-320

openssl

web.nvd.nist.gov

335

cve-2018-0732

vulnerability

tls handshake

openssl

denial of service

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

0.048

Percentile

92.9%

JSON

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 configurations

Nvd

Node

opensslopensslRange1.0.2–1.0.2o

opensslopensslRange1.1.0–1.1.0h

Node

canonicalubuntu_linuxMatch12.04esm

canonicalubuntu_linuxMatch14.04lts

canonicalubuntu_linuxMatch16.04lts

canonicalubuntu_linuxMatch17.10

canonicalubuntu_linuxMatch18.04lts

debiandebian_linuxMatch8.0

Node

nodejsnode.jsRange6.0.0–6.8.1-

nodejsnode.jsRange6.9.0–6.14.4lts

nodejsnode.jsRange8.0.0–8.8.1-

nodejsnode.jsRange8.9.0–8.11.4lts

nodejsnode.jsRange10.0.0–10.9.0-

VendorProductVersionCPE
opensslopenssl*cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
canonicalubuntu_linux12.04cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonicalubuntu_linux14.04cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonicalubuntu_linux16.04cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonicalubuntu_linux17.10cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
canonicalubuntu_linux18.04cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
nodejsnode.js*cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejsnode.js*cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*

Vendor	Product	Version	CPE
openssl	openssl	*	cpe:2.3:a:openssl:openssl::::::::
canonical	ubuntu_linux	12.04	cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
canonical	ubuntu_linux	14.04	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
canonical	ubuntu_linux	16.04	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
canonical	ubuntu_linux	17.10	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*
canonical	ubuntu_linux	18.04	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
nodejs	node.js	*	cpe:2.3:a:nodejs:node.js:::::-:::*
nodejs	node.js	*	cpe:2.3:a:nodejs:node.js:::::lts:::*

CNA Affected

[
  {
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "status": "affected",
        "version": "Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)"
      },
      {
        "status": "affected",
        "version": "Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o)"
      }
    ]
  }
]

References

www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

www.securityfocus.com/bid/104442

www.securitytracker.com/id/1041090

access.redhat.com/errata/RHSA-2018:2552

access.redhat.com/errata/RHSA-2018:2553

access.redhat.com/errata/RHSA-2018:3221

access.redhat.com/errata/RHSA-2018:3505

access.redhat.com/errata/RHSA-2019:1296

access.redhat.com/errata/RHSA-2019:1297

access.redhat.com/errata/RHSA-2019:1543

cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf

git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3984ef0b72831da8b3ece4745cac4f8575b19098

git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ea7abeeabf92b7aca160bdd0208636d4da69f4f4

lists.debian.org/debian-lts-announce/2018/07/msg00043.html

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/

nodejs.org/en/blog/vulnerability/august-2018-security-releases/

security.gentoo.org/glsa/201811-03

security.netapp.com/advisory/ntap-20181105-0001/

security.netapp.com/advisory/ntap-20190118-0002/

securityadvisories.paloaltonetworks.com/Home/Detail/133

usn.ubuntu.com/3692-1/

usn.ubuntu.com/3692-2/

www.debian.org/security/2018/dsa-4348

www.debian.org/security/2018/dsa-4355

www.openssl.org/news/secadv/20180612.txt

www.oracle.com/security-alerts/cpuapr2020.html

www.oracle.com/security-alerts/cpujan2021.html

www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html

www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

www.tenable.com/security/tns-2018-12

www.tenable.com/security/tns-2018-13

www.tenable.com/security/tns-2018-14

www.tenable.com/security/tns-2018-17

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

0.048

Percentile

92.9%

JSON

CVE-2018-0732

Affected configurations

CNA Affected

References

Social References

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