Bug 1161182

Summary: Response headers added by proxy servers missing in CURLINFO_HEADER_SIZE
Product: Red Hat Enterprise Linux 7 Reporter: Kamil Dudka <kdudka>
Component: curlAssignee: Kamil Dudka <kdudka>
Status: CLOSED ERRATA QA Contact: Stefan Kremen <skremen>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 7.2CC: ovasik, she, skremen
Target Milestone: alpha   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: curl-7.29.0-24.el7 Doc Type: Bug Fix
Doc Text:
Previously, libcurl returned wrong value of the CURLINFO_HEADER_SIZE field in case a proxy server appended its own headers to the HTTP response. An upstream patch has been applied on libcurl sources to fix calculation of the field. Now the returned value is valid even if proxy headers are appended.
Story Points: ---
Clone Of: 1161163 Environment:
Last Closed: 2015-11-19 07:07:14 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1161163    

Description Kamil Dudka 2014-11-06 15:27:41 UTC
+++ This bug was initially created as a clone of Bug #1161163 +++

Description of problem:

Sourceforge bug id -> #1204 -> http://sourceforge.net/p/curl/bugs/1204/

See https://github.com/bagder/curl/pull/60

Often times proxy servers add their own headers (like HTTP/1.0 200 Connection established) to responses on their way back to the client. The size of these headers was not taken into account when calculating CURLINFO_HEADER_SIZE before the change from this pull request.

The problem can be reproduced quite easily using the test program from https://gist.github.com/mj/5102778. In our case the proxy server at proxy:8080 was the default Squid that ships with Debian stable.

Version-Release number of selected component in my case:

   # rpm -qa |grep curl

   # curl --version
   curl 7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.15.3 zlib/1.2.3 libidn/1.18 libssh2/1.4.2

How reproducible:

Use curl to connect to URL through proxy server.

--- Additional comment from RHEL Product and Program Management on 2014-11-06 15:50:49 CET ---

Since this bug report was entered in bugzilla, the release flag has been
set to ? to ensure that it is properly evaluated for this release.

--- Additional comment from Kamil Dudka on 2014-11-06 16:25:18 CET ---

Thank you for reporting the bug!

upstream commit:

Comment 7 errata-xmlrpc 2015-11-19 07:07:14 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.