Closed Bug 587742 Opened 13 years ago Closed 13 years ago

Malformed cmap table in TT font leads to crash [@TcmapUnicodeTable::GetSubtable]

Categories

(Core :: Graphics, defect)

Product:
Core
Component:
Graphics
Platform:
x86_64
macOS
Type:
defect
Priority:
Not set
Severity:
critical

Tracking

()

Status:
RESOLVED FIXED
Tracking Flags:
Tracking Status
status1.9.2 --- .13-fixed
status1.9.1 --- .16-fixed

People

(Reporter: posidron, Assigned: jfkthame)

References

(Blocks 1 open bug)

Details

(Keywords: verified1.9.2, Whiteboard: rdar://8314536)

Attachments

(3 files)

testccase
62.80 KB, application/zip
Details
callstack
12.68 KB, text/plain
Details
callstack-fontbook
26.19 KB, text/plain
Details
Attached file testccase — 
Tag: b'cmap' Checksum: 0x0000d510 Offset: 300/0x0000012c Length: 768

Table: b'cmap'
Number of replaced values: 4
Offset:   2/0x000002 Value: ['ff', 'c4', '40', '0f']
Offset:   7/0x000007 Value: ['7f', 'ff', 'ff', 'ff']
Offset: 216/0x0000d8 Value: ['80', '00']
Offset: 486/0x0001e6 Value: ['00', '00', '00', '00', '00', '00', '00', '01']

Note: FontBook is affected to.
Attached file callstack — 

    
    

    
  

      
      
      
      

        Attached file
          
        callstack-fontbook
        — 
      

    


  

    
  
Assignee: nobody → jdaggett

    
    

    
  
This will be fixed by the OTS sanitizer (bug 527276).
Depends on: CVE-2010-3768

    
  
Assignee: jdaggett → jfkthame
Status: NEW → RESOLVED
Closed: 13 years ago

          status1.9.2:
          --- → .13-fixed
Resolution: --- → FIXED

    
    

    
  
Verified fixed in 1.9.2.13 with Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6;
en-US; rv:1.9.2.13pre) Gecko/20101118 Namoroka/3.6.13pre using testcase. Test
no longer crashes as it does in 1.9.2.12.
Keywords: verified1.9.2

    
  
Blocks: fuzzing-fonts

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