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CVE-2018-0734

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Date: October 30, 2018

The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).

Language: C

Severity Score

Related Resources (32)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/
https://www.oracle.com/security-alerts/cpuapr2020.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html
https://access.redhat.com/errata/RHSA-2019:3932
https://www.openssl.org/news/secadv/20181030.txt
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=43e6a58d4991a451daf4891ff05a48735df871ac
https://access.redhat.com/errata/RHSA-2019:2304
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.debian.org/security/2018/dsa-4348
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ef11e19d1365eea2b1851e6f540a0bf365d303e7
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://access.redhat.com/security/cve/CVE-2018-0734
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/
https://www.tenable.com/security/tns-2018-16
https://www.tenable.com/security/tns-2018-17
https://access.redhat.com/errata/RHSA-2019:3700
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html
https://nvd.nist.gov/vuln/detail/CVE-2018-0734
https://security.netapp.com/advisory/ntap-20190118-0002/
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
https://www.debian.org/security/2018/dsa-4355
https://usn.ubuntu.com/3840-1/
https://security.netapp.com/advisory/ntap-20181105-0002/
https://security.netapp.com/advisory/ntap-20190423-0002/
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=8abfe72e8c1de1b95f50aa0d9134803b4d00070f
http://www.securityfocus.com/bid/105758
https://www.oracle.com/security-alerts/cpujan2020.html
https://access.redhat.com/errata/RHSA-2019:3933
https://access.redhat.com/errata/RHSA-2019:3935
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/
https://www.mend.io/vulnerability-database/CVE-2018-0734

Severity Score

Weakness Type (CWE)

Key Management Errors

CWE-320

Use of a Broken or Risky Cryptographic Algorithm

CWE-327

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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