bugThe FreeType Project - Bugs: bug #43794, Segfaults in Type 42 and CFF driver

 
 

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bug #43794: Segfaults in Type 42 and CFF driver

Submitter:  None
Submitted:  Wed 10 Dec 2014 04:20:52 PM UTC
   
 
Severity:  3 - Normal Item Group:  Crash
Status:  Fixed Privacy:  Public
Assigned to:  wl Open/Closed:  Closed
Planned Release:  2.5.5

Thu 11 Dec 2014 01:09:55 PM UTC, comment #1: 

Already fixed in git, thanks.

Werner LEMBERG <wl>
Group administrator
Wed 10 Dec 2014 04:20:52 PM UTC, original submission:  

Using AFL ( http://lcamtuf.coredump.cx/afl/ ) I have discovered a segfault when using a defective Type 42 font in FreeType as well as a null pointer dereference in the CFF driver. I'm not sure if this has any security implications. The file as well as the accompanying GDB output are attached.

Anonymous

 

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Attached Files
file #32639:  id:000000,sig:11,src:000000,op:havoc,rep:16 added by None (2KiB - application/octet-stream)
file #32640:  id:000000,sig:11,src:000000,op:havoc,rep:16.gdb added by None (3KiB - application/octet-stream)
file #32641:  id:000001,sig:11,src:000000,op:havoc,rep:4 added by None (3KiB - application/octet-stream)
file #32642:  id:000001,sig:11,src:000000,op:havoc,rep:4.gdb added by None (887B - application/octet-stream)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 9 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2014-12-11 wl StatusNone Fixed
        PrivacyPrivate Public
        Assigned toNone wl
        Open/ClosedOpen Closed
        Planned ReleaseNone 2.5.5
    2014-12-10 None Attached File- Added id:000000,sig:11,src:000000,op:havoc,rep:16, #32639
        Attached File- Added id:000000,sig:11,src:000000,op:havoc,rep:16.gdb, #32640
        Attached File- Added id:000001,sig:11,src:000000,op:havoc,rep:4, #32641
        Attached File- Added id:000001,sig:11,src:000000,op:havoc,rep:4.gdb, #32642

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