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Vulnerability details: VCID-uzuq-4m1a-aaaj
Vulnerability ID VCID-uzuq-4m1a-aaaj
Aliases CVE-2015-7744
Summary wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-358 Improperly Implemented Security Check for Standard
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-7744.html
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
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epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.00838 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
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epss 0.01132 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
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epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
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epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.01566 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.02112 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.02112 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
epss 0.04584 https://api.first.org/data/v1/epss?cve=CVE-2015-7744
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1301488
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7744
cvssv2 2.6 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 2.6 https://nvd.nist.gov/vuln/detail/CVE-2015-7744
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2015-7744
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2015-7744
cvssv3.1 8.8 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
generic_textual HIGH http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
generic_textual HIGH http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
generic_textual Medium http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html#AppendixMSQL
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html
http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-7744.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-7744.json
https://api.first.org/data/v1/epss?cve=CVE-2015-7744
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7744
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html
http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html#AppendixMSQL
http://www.securitytracker.com/id/1034708
1301488 https://bugzilla.redhat.com/show_bug.cgi?id=1301488
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
CVE-2015-7744 https://nvd.nist.gov/vuln/detail/CVE-2015-7744
No exploits are available.
Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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: AV:N/AC:H/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2015-7744
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:3.1/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-2015-7744
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:3.1/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-2015-7744
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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
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 0.82504
EPSS Score 0.00838
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.