CVE-2016-5420
7.5
HIGH
CVSS 3.1
EPSS 1.1%
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.
How to fix CVE-2016-5420
To remediate CVE-2016-5420, upgrade the affected package to a fixed version below.
- Alpine/curl—upgrade to 7.50.1-r0 or later
- —upgrade to 7.50.1-1 or later
Is CVE-2016-5420 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7.50.1-r0
- from 0, < 7.50.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |