Bug 1425746 (CVE-2017-2629)

Summary: CVE-2017-2629 curl: SSL_VERIFYSTATUS ignored
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bmcclain, cfergeau, dblechte, eedri, erik-fedora, hhorak, jorton, kdudka, lsurette, luhliari, mgoldboi, michal.skrivanek, mike, omajid, paul, rbalakri, rh-spice-bugs, sardella, sherold, srevivo, ykaul, ylavi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: curl 7.53.0 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-02-22 09:58:11 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Adam Mariš 2017-02-22 09:56:17 UTC
A coding mistake was found in 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. Contrary to how it used to function and contrary to how this feature is documented to work.

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).

Affected versions: 7.52.0 to and including 7.52.1
Not affected versions: < 7.52.0 and >= 7.53.0

Upstream patch:

https://curl.haxx.se/CVE-2017-2629.patch

External References:

https://curl.haxx.se/docs/adv_20170222.html

Comment 1 Adam Mariš 2017-02-22 09:58:11 UTC
Acknowledgments:

Name: the Curl project
Upstream: Marcus Hoffmann

Comment 2 Kamil Dudka 2017-02-22 15:33:01 UTC
Luckily, this bug has never reached any stable release of Fedora.  Rawhide is fixed since curl-7.53.0-1.fc26 via:

http://pkgs.fedoraproject.org/cgit/rpms/curl.git/commit/?id=8afeb939