Vulnerability Details CVE-2018-0739
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.201
EPSS Ranking 95.2%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/103518
- http://www.securityfocus.com/bid/105609
- http://www.securitytracker.com/id/1040576
- https://access.redhat.com/errata/RHSA-2018:3090
- https://access.redhat.com/errata/RHSA-2018:3221
- https://access.redhat.com/errata/RHSA-2018:3505
- https://access.redhat.com/errata/RHSA-2019:0366
- https://access.redhat.com/errata/RHSA-2019:0367
- https://access.redhat.com/errata/RHSA-2019:1711
- https://access.redhat.com/errata/RHSA-2019:1712
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2ac4c6f7b2b2af20c0e2b0ba05367e454cd11b33
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=9310d45087ae546e27e61ddf8f6367f29848220d
- https://lists.debian.org/debian-lts-announce/2018/03/msg00033.html
- https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/
- https://security.gentoo.org/glsa/201811-21
- https://security.gentoo.org/glsa/202007-53
- https://security.netapp.com/advisory/ntap-20180330-0002/
- https://security.netapp.com/advisory/ntap-20180726-0002/
- https://securityadvisories.paloaltonetworks.com/Home/Detail/133
- https://usn.ubuntu.com/3611-1/
- https://usn.ubuntu.com/3611-2/
- https://www.debian.org/security/2018/dsa-4157
- https://www.debian.org/security/2018/dsa-4158
- https://www.openssl.org/news/secadv/20180327.txt
- 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-2018-04
- https://www.tenable.com/security/tns-2018-06
- https://www.tenable.com/security/tns-2018-07
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/103518
- http://www.securityfocus.com/bid/105609
- http://www.securitytracker.com/id/1040576
- https://access.redhat.com/errata/RHSA-2018:3090
- https://access.redhat.com/errata/RHSA-2018:3221
- https://access.redhat.com/errata/RHSA-2018:3505
- https://access.redhat.com/errata/RHSA-2019:0366
- https://access.redhat.com/errata/RHSA-2019:0367
- https://access.redhat.com/errata/RHSA-2019:1711
- https://access.redhat.com/errata/RHSA-2019:1712
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2ac4c6f7b2b2af20c0e2b0ba05367e454cd11b33
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=9310d45087ae546e27e61ddf8f6367f29848220d
- https://lists.debian.org/debian-lts-announce/2018/03/msg00033.html
- https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/
- https://security.gentoo.org/glsa/201811-21
- https://security.gentoo.org/glsa/202007-53
- https://security.netapp.com/advisory/ntap-20180330-0002/
- https://security.netapp.com/advisory/ntap-20180726-0002/
- https://securityadvisories.paloaltonetworks.com/Home/Detail/133
- https://usn.ubuntu.com/3611-1/
- https://usn.ubuntu.com/3611-2/
- https://www.debian.org/security/2018/dsa-4157
- https://www.debian.org/security/2018/dsa-4158
- https://www.openssl.org/news/secadv/20180327.txt
- 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-2018-04
- https://www.tenable.com/security/tns-2018-06
- https://www.tenable.com/security/tns-2018-07
Products affected by CVE-2018-0739
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cpe:2.3:a:openssl:openssl:1.0.2b
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cpe:2.3:a:openssl:openssl:1.0.2c
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cpe:2.3:a:openssl:openssl:1.0.2d
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cpe:2.3:a:openssl:openssl:1.0.2e
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cpe:2.3:a:openssl:openssl:1.0.2f
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cpe:2.3:a:openssl:openssl:1.0.2g
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cpe:2.3:a:openssl:openssl:1.0.2h
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cpe:2.3:a:openssl:openssl:1.0.2i
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cpe:2.3:a:openssl:openssl:1.0.2j
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cpe:2.3:a:openssl:openssl:1.0.2k
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cpe:2.3:a:openssl:openssl:1.0.2l
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cpe:2.3:a:openssl:openssl:1.0.2m
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cpe:2.3:a:openssl:openssl:1.0.2n
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cpe:2.3:a:openssl:openssl:1.1.0
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cpe:2.3:a:openssl:openssl:1.1.0a
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cpe:2.3:a:openssl:openssl:1.1.0b
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cpe:2.3:a:openssl:openssl:1.1.0c
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cpe:2.3:a:openssl:openssl:1.1.0d
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cpe:2.3:a:openssl:openssl:1.1.0e
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cpe:2.3:a:openssl:openssl:1.1.0f
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cpe:2.3:a:openssl:openssl:1.1.0g
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cpe:2.3:o:canonical:ubuntu_linux:14.04
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:17.10
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cpe:2.3:o:debian:debian_linux:7.0
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0