TLS Session Resumption Vulnerability in Curl and Libcurl
CVE-2017-7468

4.8MEDIUM

Key Information:

Vendor

[unknown]

Status
Curl
Vendor
CVE Published:
16 July 2018

What is CVE-2017-7468?

In versions of curl and libcurl ranging from 7.52.0 to 7.53.1, an issue arises where libcurl attempts to resume a TLS session despite changes in the client certificate. This behavior poses a risk, as it allows a server to potentially bypass client certificate validation on session resumes. Consequently, the server could revert to using an outdated identity established by the previous certificate, undermining the integrity of secure communications. This vulnerability shares similarities with a previously reported flaw, making it crucial for users to apply available patches and review their security protocols.

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Affected Version(s)

curl curl 7.54.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7468
x_refsource_CONFIRM
https://security.gentoo.org/glsa/201709-14
vendor-advisoryx_refsource_GENTOO
http://www.securitytracker.com/id/1038341
vdb-entryx_refsource_SECTRACK

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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