CWE
327 385
Advisory Published
CVE Published
Updated

CVE-2018-0734: Timing attack against DSA

First published: Tue Oct 16 2018(Updated: )

A flaw was found in OpenSSL versions from 1.1.0 through 1.1.0i inclusive, from 1.0.2 through 1.0.2p inclusive and version 1.1.1. 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. Reference: <a href="https://www.openssl.org/news/secadv/20181030.txt">https://www.openssl.org/news/secadv/20181030.txt</a> Upstream Patches: <a href="https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=43e6a58d4991a451daf4891ff05a48735df871ac">https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=43e6a58d4991a451daf4891ff05a48735df871ac</a> <a href="https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8abfe72e8c1de1b95f50aa0d9134803b4d00070f">https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8abfe72e8c1de1b95f50aa0d9134803b4d00070f</a> <a href="https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ef11e19d1365eea2b1851e6f540a0bf365d303e7">https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ef11e19d1365eea2b1851e6f540a0bf365d303e7</a> <a href="https://github.com/openssl/openssl/commit/b96bebacfe814deb99fb64a3ed2296d95c573600">https://github.com/openssl/openssl/commit/b96bebacfe814deb99fb64a3ed2296d95c573600</a>

Credit: openssl-security@openssl.org

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24-apr<0:1.6.3-63.jbcs.el6
0:1.6.3-63.jbcs.el6
redhat/jbcs-httpd24-apr-util<0:1.6.1-48.jbcs.el6
0:1.6.1-48.jbcs.el6
redhat/jbcs-httpd24-brotli<0:1.0.6-7.jbcs.el6
0:1.0.6-7.jbcs.el6
redhat/jbcs-httpd24-curl<0:7.64.1-14.jbcs.el6
0:7.64.1-14.jbcs.el6
redhat/jbcs-httpd24-httpd<0:2.4.37-33.jbcs.el6
0:2.4.37-33.jbcs.el6
redhat/jbcs-httpd24-jansson<0:2.11-20.jbcs.el6
0:2.11-20.jbcs.el6
redhat/jbcs-httpd24-nghttp2<0:1.39.2-4.jbcs.el6
0:1.39.2-4.jbcs.el6
redhat/jbcs-httpd24-openssl<1:1.1.1-25.jbcs.el6
1:1.1.1-25.jbcs.el6
redhat/jbcs-httpd24-apr<0:1.6.3-63.jbcs.el7
0:1.6.3-63.jbcs.el7
redhat/jbcs-httpd24-apr-util<0:1.6.1-48.jbcs.el7
0:1.6.1-48.jbcs.el7
redhat/jbcs-httpd24-brotli<0:1.0.6-7.jbcs.el7
0:1.0.6-7.jbcs.el7
redhat/jbcs-httpd24-curl<0:7.64.1-14.jbcs.el7
0:7.64.1-14.jbcs.el7
redhat/jbcs-httpd24-httpd<0:2.4.37-33.jbcs.el7
0:2.4.37-33.jbcs.el7
redhat/jbcs-httpd24-jansson<0:2.11-20.jbcs.el7
0:2.11-20.jbcs.el7
redhat/jbcs-httpd24-nghttp2<0:1.39.2-4.jbcs.el7
0:1.39.2-4.jbcs.el7
redhat/jbcs-httpd24-openssl<1:1.1.1-25.jbcs.el7
1:1.1.1-25.jbcs.el7
redhat/openssl<1:1.0.2k-19.el7
1:1.0.2k-19.el7
redhat/openssl<1:1.1.1c-2.el8
1:1.1.1c-2.el8
redhat/openssl<1.1.0
1.1.0
redhat/openssl<1.1.1
1.1.1
redhat/openssl<1.0.2
1.0.2
debian/openssl
1.1.1w-0+deb11u1
1.1.1n-0+deb11u5
3.0.14-1~deb12u1
3.0.14-1~deb12u2
3.3.2-1
IBM Security Verify Governance - Identity Manager<=10.0
OpenSSL>=1.0.2<=1.0.2p
OpenSSL>=1.1.0<=1.1.0i
OpenSSL=1.1.1
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=18.10
Debian Linux=9.0
Node.js>=6.0.0<=6.8.1
Node.js>=6.9.0<6.15.0
Node.js>=8.0.0<=8.8.1
Node.js>=8.9.0<8.14.0
Node.js>=10.0.0<=10.12.0
Node.js>=11.0.0<11.3.0
Node.js=10.13.0
All of
NetApp CN1610
NetApp CN1610 Firmware
NetApp Cloud Backup
NetApp OnCommand Unified Manager for Windows
NetApp SANtricity SMI-S Provider Firmware
NetApp SnapCenter
NetApp SteelStore Cloud Integrated Storage
NetApp Storage Automation Store
Oracle API Gateway=11.1.2.4.0
Oracle E-Business Suite=0.9.8
Oracle E-Business Suite=1.0.0
Oracle E-Business Suite=1.0.1
Oracle Enterprise Manager=12.1.0.5.0
Oracle Enterprise Manager=13.2.0.0.0
Oracle Enterprise Manager=13.3.0.0.0
Oracle Enterprise Manager Ops Center=12.3.3
Oracle MySQL Enterprise Backup>=3.0<=3.12.3
Oracle MySQL Enterprise Backup>=4.0<=4.1.2
Oracle PeopleTools=8.55
Oracle PeopleTools=8.56
Oracle PeopleTools=8.57
Oracle Primavera P6 Enterprise Project Portfolio Management>=17.7<=17.12
Oracle Primavera P6 Enterprise Project Portfolio Management=8.4
Oracle Primavera P6 Enterprise Project Portfolio Management=15.1
Oracle Primavera P6 Enterprise Project Portfolio Management=15.2
Oracle Primavera P6 Enterprise Project Portfolio Management=16.1
Oracle Primavera P6 Enterprise Project Portfolio Management=16.2
Oracle Primavera P6 Enterprise Project Portfolio Management=18.8
Oracle Tuxedo=12.1.1.0.0
NetApp CN1610
NetApp CN1610 Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0734?

    CVE-2018-0734 is classified as a medium severity vulnerability due to its potential for a timing side channel attack on the OpenSSL DSA signature algorithm.

  • How do I fix CVE-2018-0734?

    To mitigate CVE-2018-0734, upgrade OpenSSL to a version that is not vulnerable, such as 1.1.1 or appropriate patched versions indicated by the vendor.

  • Which versions of OpenSSL are affected by CVE-2018-0734?

    CVE-2018-0734 affects OpenSSL versions from 1.1.0 through 1.1.0i inclusive, 1.0.2 through 1.0.2p inclusive, and version 1.1.1.

  • What types of attacks can exploit CVE-2018-0734?

    CVE-2018-0734 can be exploited using timing side channel attacks that could allow an attacker to recover private keys during signature operations.

  • Is CVE-2018-0734 applicable to all OpenSSL implementations?

    CVE-2018-0734 is specifically related to certain versions of OpenSSL and may not apply to other cryptographic implementations.

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