Vulnerability in Curl
CVE-2017-2629
curl before 7.53.0 has an incorrect TLS Certificate Status Request extension feature that asks for a fresh proof of the server's certificate's validity in the code that checks for a test success or failure. It ends up always thinking there's valid proof, even when there is none or if the server doesn't support the TLS extension in question. This could lead to users not detecting when a server's certificate goes invalid or otherwise be mislead that the server is in a better shape than it is in reality. This flaw also exists in the command line tool (--cert-status).
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/96382 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.securitytracker.com/id/1037871 (VDB Entry, Third Party Advisory, vdb-entry)
- www.tenable.com/security/tns-2017-09 (Third Party Advisory)
- curl.haxx.se/docs/adv_20170222.html (Vendor Advisory)
- security.gentoo.org/glsa/201703-04 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-2629?
- CVE-2017-2629 is a medium-severity vulnerability in Curl, classified under Improper Certificate Validation. CVSS score: 4.3/10. Published 2018-07-27.
- How severe is CVE-2017-2629?
- Medium severity. CVSS v3 base score is 4.3 out of 10.