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Bug 997185 - sendrecv.c example incorrect type for sockfd
Summary: sendrecv.c example incorrect type for sockfd
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: curl
Version: 6.4
Hardware: Unspecified
OS: Unspecified
unspecified
low
Target Milestone: rc
: ---
Assignee: Kamil Dudka
QA Contact: Stefan Kremen
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-08-14 21:12 UTC by Leonard den Ottolander
Modified: 2015-07-22 05:42 UTC (History)
1 user (show)

Fixed In Version: curl-7.19.7-43.el6
Doc Type: Bug Fix
Doc Text:
Previously, the code examples installed by the libcurl-devel package used a wrong data type for sockets when calling the curl_easy_getinfo() function. This resulted in stack smashing on some architectures because the API defines its own data type (of different size) for sockets. The examples have been fixed to use the correct data type for sockets, so the stack smashing no longer happens.
Clone Of:
Environment:
Last Closed: 2015-07-22 05:42:55 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1254 0 normal SHIPPED_LIVE Moderate: curl security, bug fix, and enhancement update 2015-07-20 17:50:03 UTC

Description Leonard den Ottolander 2013-08-14 21:12:51 UTC 
Description of problem:

The example /usr/share/doc/libcurl-devel-7.19.7/sendrecv.c uses a parameter sockfd of type int in the call to curl_easy_getinfo() where it should use a long. This causes a bufferoverflow that makes the binary fail if no optimization is used for its compilation.

Because the resulting binary seems to work correctly when optimization is used I mistakenly suspected gcc to be the cause of this issue (bug #996793).

The issue seems to be fixed upstream.


Version-Release number of selected component (if applicable):

libcurl-devel-7.19.7-37
Comment 1 Kamil Dudka 2013-08-15 12:30:34 UTC 
upstream commit:

https://github.com/bagder/curl/commit/bcfb9ea3
Comment 10 errata-xmlrpc 2015-07-22 05:42:55 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.

https://rhn.redhat.com/errata/RHSA-2015-1254.html
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