Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-05-16 Thread Mattia Rizzolo
On Thu, May 04, 2017 at 09:56:00AM +0200, zyx wrote: > On Wed, 2017-05-03 at 21:43 +0200, Matthew Brincke wrote: > > > nice, I gave it a quick try and using that provided PDF and the > > > code suggested there, with svn trunk at revision 1824, I get this > > > output: > > > > very probably there a

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-05-04 Thread zyx
Hi, On Wed, 2017-05-03 at 21:43 +0200, Matthew Brincke wrote: > > nice, I gave it a quick try and using that provided PDF and the > > code suggested there, with svn trunk at revision 1824, I get this > > output: > > very probably there are transposed digits, you actually meaning the > svn

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-05-03 Thread Matthew Brincke
Hi zyx, hi Mattia, hi all, zyx has written on 3 May 2017 at 18:24: > > On Wed, 2017-05-03 at 15:47 +0200, Matthew Brincke wrote: > > > on May 1st, the Debian bug #861597 [1] was filed, mentioning the CVE > > ID > > of this PdfParser::ReadObjects heap overflow vulnerability: CVE-2017- > > 8378,

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-05-03 Thread zyx
On Wed, 2017-05-03 at 15:47 +0200, Matthew Brincke wrote: > on May 1st, the Debian bug #861597 [1] was filed, mentioning the CVE > ID > of this PdfParser::ReadObjects heap overflow vulnerability: CVE-2017- > 8378, > under which it's also listed in the Debian security tracker for > libpodofo > (deta

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-05-03 Thread Matthew Brincke
Hello Mattia, hello zyx, hello all, on May 1st, the Debian bug #861597 [1] was filed, mentioning the CVE ID of this PdfParser::ReadObjects heap overflow vulnerability: CVE-2017-8378, under which it's also listed in the Debian security tracker for libpodofo (detail page [2]). [1] https://bugs.debi

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-04-24 Thread Mattia Rizzolo
On Mon, Apr 24, 2017 at 08:20:04PM +0200, zyx wrote: > thanks for reporting. It seems to not be filled here yet [1]. > > Adding it to [1] would be also nice to have (not a question > for you, I suppose). Would be nice to have a CVE id also. Could somebody fill https://cveform.mitre.org/ asking fo

Re: [Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-04-24 Thread zyx
On Sat, 2017-04-22 at 22:25 +0800, Xiaobo Xiang wrote: > I've found a heap overflow bug in podofo library during my fuzzing > with libFuzzer. Hi, thanks for reporting. It seems to not be filled here yet [1]. Could you provide the offending PDF file, please? It's easier for a reproducer. A

[Podofo-users] Fwd: heap overflow in podofo's pdf parser

2017-04-24 Thread Xiaobo Xiang
Hi, I've found a heap overflow bug in podofo library during my fuzzing with libFuzzer. My wrapper just simply called PdfMemDocument doc( filename ); It crashed when parsing a crafted pdf file. the crash log is as follows: ==17463==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x620