High severity · published Aug 10, 2016
CVE-2016-5420
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…
7.5
CVSS
15.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)15.4% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
LE
Leap · Opensuse
42.1 · source: NVD
LI
Libcurl · Haxx
through 7.50.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5420
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5420
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-2575.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-2957.html
Third Party Advisory
http://www.debian.org/security/2016/dsa-3638
www.oracle.com
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
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