CVE-2017-7468

MEDIUM
4.8
CVSS Score
Published: July 16, 2018 at 01:00 PM UTC
Updated: June 17, 2026 at 01:24 AM UTC
1 product affected across 1 vendorLibcurl

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Severity
MEDIUM4.8
Exploit prediction
EPSS 2%

Description

In curl and libcurl 7.52.0 to and including 7.53.1, libcurl would attempt to resume a TLS session even if the client certificate had changed. That is unacceptable since a server by specification is allowed to skip the client certificate check on resume, and may instead use the old identity which was established by the previous certificate (or no certificate). libcurl supports by default the use of TLS session id/ticket to resume previous TLS sessions to speed up subsequent TLS handshakes. They are used when for any reason an existing TLS connection couldn't be kept alive to make the next handshake faster. This flaw is a regression and identical to CVE-2016-5419 reported on August 3rd 2016, but affecting a different version range.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.52.0 ≤ v ≤ 7.53.17.54.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/97962
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1038341
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7468
x_refsource_CONFIRMVendor Advisory
https://curl.haxx.se/docs/adv_20170419.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201709-14

CVSS

4.8MEDIUMredhat
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-295

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