Home/CVE/curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which migh
CVE

CVE-2016-5420

curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which migh

curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.

HIGH · CVSS 7.5 EPSS 0.01071
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0

Weakness Classification

Affected Products & Versions

3
debian linuxall versions
haxx libcurl<= 7.50.0
opensuse leapall versions

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotential DLL Sideloading Of Libcurl.DLL Via GUP.EXE

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Aug 2016 · 02:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vendor Advisories

12
rhsaRHSA-2018:3558Moderate
suse-csafSUSE-SU-2018:0230-1
suse-csafSUSE-SU-2017:2699-1
suse-csafSUSE-SU-2017:2700-1
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