We shoot in the foot, processing the input data

 3r3662. 3r3-31. 3r3640.
We shoot in the foot, processing the input data  3r3662. The link of today's article is different from the usual. This is not one project for which the source code was analyzed, but a series of positives of the same diagnostic rule in several different projects. What is the interest here? The fact that some of the considered code fragments contain errors that are reproduced during the work with the application, while others contain vulnerabilities (CVE). In addition, at the end of the article we discuss a bit about security defects.
 3r3662. 3r311. 3r3650.
 3r3662. 3r3618. A brief introduction to r3r3619.
 3r3662. All errors that will be considered today in the article have a similar pattern:
 3r3662.
 3r3662. 3r3-3593.  3r3662. 3r3-3598. The program accepts data from stream 3r3528. stdin [/i] ; 3r3599.  3r3662. 3r3-3598. checks the success of reading data; 3r3599.  3r3662. 3r3-3598. if the data is read successfully, the hyphen is removed from the string. 3r3599.  3r3662. 3r3601.
 3r3662. However, all the fragments that will be considered contain errors and are vulnerable to adjusted input. Since the data is received from the user, which may violate the logic of the application execution, there was a great temptation to try to break something. What I did.
 3r3662.
 3r3662. All the problems listed below were found to be PVS-Studio static analyzer. which looks for errors in the code not only for C, C ++, but also for C #, Java.
 3r3662.
 3r3662. Of course, finding a problem with a static analyzer is good, but finding and reproducing is a completely different level of pleasure. :)
 3r3662.
 3r3662. 3r3618. FreeSWITCH
 3r3662. The first suspicious code snippet was found in the module code 3r33528. fs_cli.exe [/i] included with the FreeSWITCH distribution:
 3r3662.
 3r3662. 3r? 3516. 3r? 3517. static const char * basic_gets (int * cnt)
{
3r3662. int c = getchar (); 3r3662. if (c < 0) {
if (fgets (command_buf, sizeof (command_buf) - ? stdin) 3r3662.! = command_buf) {
break; 3r3662.} 3rr6666. command_buf[strlen(command_buf)-1]= 'r3r3543. : V1010 r3r3650.
CWE-20
Unchecked tainted data is used in index: 'strlen (line)'.
 3r3662.
 3r3662. With another attempt, the problem was corrected by adding a check of the length of the input line:
 3r3662.
 3r3662. 3r? 3516. 3r? 3517. if (strlen (line)> 0)
if (line[strlen (line) - 1]== 'n')
line[strlen (line) - 1]= '
+ 0 -

Comments 10

Offline
PeterAllison 16 July 2019 11:01
While we've quite recently started to expose what's underneath, the important takeaway is to decide a procedure to catch your genuine outcomes information with the goal that you can reproduce shots sometime in the future. Regardless of whether you begin as basically as chronicle genuine rise modifications for various extents, you're moving the correct way. assignment writing services | AssignmentLand
Offline
john
john 16 October 2019 09:17
Love all of the tips and the shower is adorable! You have so many details and everything came together so cute.  
Thanks a lot for this article, I very interested with this published. Your post is incredibly fantastic with a lot of interesting information and impressive posting style. i have lots of question in my mind regarding gift packing design after reading this post lot’s of question clear on my mind. 

custom made boxes

Offline
Nick Jones
Nick Jones 18 October 2019 08:51
good entertaining article. Bespoke Boxes provides you custom packaging boxes and much other product packaging for your products.contact us and order for packaging boxes (+1) 646 389 0938
Offline
Nate Walliam
Nate Walliam 23 October 2019 13:58
I love to comment here because this article helps me a lot. Actually I need help with custom boxes Australia that's why I come here.
Offline
jaciob
jaciob 10 November 2019 19:56
Love the entirety of the tips and the shower is cute! You have such huge numbers of subtleties and everything met up so adorable. You rock for this article, I extremely intrigued with this distributed. Your post is staggeringly fabulous with a great deal of intriguing data and amazing posting style. I have loads of inquiry in my psyche with respect to blessing pressing structure subsequent to perusing this post part's of inquiry clear at the forefront of my thoughts

Men’s formal pair of shoes
Offline
Melissa Falbo
Melissa Falbo 25 November 2019 14:38
I appreciate this interesting information sharing. Custom printed boxes online at wholesale rates. we are the best providers printing and packaging solutions.


Great article. Thank you very much for sharing. Google ads certification exam answers free of cost. For more detail please visit us. 
Offline
heenacruzl
heenacruzl 10 December 2019 10:14
I really enjoyed reading your articles. It looks like you've spent a lot of time and effort on your blog. I have bookmarked it and will visit your blog regularly. mutilate a doll 2

Offline
araemard
araemard 9 March 2020 06:53
Do not hide love. Tell the people around you that you love them so much. Say the sweetest and sweetest sayings when you can. Do not keep the words of love across the world  friv
Offline
pikachu chu
pikachu chu 19 March 2020 06:33
Thank you for sharing these fascinating places. You can visit more of this website to find locations: driving directions
Offline
Mike micky
Mike micky 26 March 2020 14:02
https://mtnid88.com/   Are you looking for a thorough toto site? We recommend toto sites suitable for your desired conditions!

Add comment