[asterisk-bugs] [Asterisk 0016407]: potential buffer overflow in say_date_with_format()

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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https://issues.asterisk.org/view.php?id=16407 
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Reported By:                qwell
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16407
Category:                   Core/General
Reproducibility:            have not tried
Severity:                   crash
Priority:                   low
Status:                     new
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-12-07 15:40 CST
Last Modified:              2009-12-07 15:40 CST
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Summary:                    potential buffer overflow in say_date_with_format()
Description: 
An improper (or crafted) format string can cause a buffer overflow in
say_date_with_format().

Inside the ast_say_date_with_format_LANG() functions (all of them appear
to have the same bug - yay copy/paste?), there is a for loop that iterates
over format.  If format contains only one apostrophe, the inner loop can
loop beyond the end of format.


I believe that inner loop should be checking bounds with format[offset +
1].
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Issue History 
Date Modified    Username       Field                    Change               
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2009-12-07 15:40 qwell          New Issue                                    
2009-12-07 15:40 qwell          Asterisk Version          => SVN             
2009-12-07 15:40 qwell          Regression                => No              
2009-12-07 15:40 qwell          SVN Branch (only for SVN checkouts, not tarball
releases) => N/A             
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