exploit the possibilities

pdflib-overflows.txt

pdflib-overflows.txt
Posted Dec 24, 2007
Authored by poplix | Site px.dynalias.org

pdflib, a library used for generating PDFs on the fly, suffers from multiple buffer overflow vulnerabilities due to the use of strcpy().

tags | advisory, overflow, vulnerability
MD5 | 5b5319a4404f4f00c7533d2437c848fa

pdflib-overflows.txt

Change Mirror Download
hi,
pdflib, a library for generating PDF on the fly, avilable at http://
www.pdflib.com, is vulnerable to multiple bufferoverflows due to a
misuse of strcpy().
An attacker can exploit this issue to execute arbitrary code or to
crash the application that uses the library.
One of the vulnerable functions is pdc_fsearch_fopen() that is
called, for example, by PDF_load_image() which overflows a stack
buffer if a long filename is provided.
The php wrapper for pdflib (pecl extension) is also vulnerable so
please take care of allowing users to generate custom pdfs from webapps.

this is a proof-of-concept that crashes php:
<?php
.....
PDF_load_image($p,"jpeg",str_repeat("A",1100), null);

?>


The developers have been warned and they plained to fix those bugs in
the next release.


cheers,
-poplix
http://px.dynalias.org

Login or Register to add favorites

File Archive:

May 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    1 Files
  • 2
    May 2nd
    4 Files
  • 3
    May 3rd
    26 Files
  • 4
    May 4th
    17 Files
  • 5
    May 5th
    3 Files
  • 6
    May 6th
    32 Files
  • 7
    May 7th
    11 Files
  • 8
    May 8th
    2 Files
  • 9
    May 9th
    2 Files
  • 10
    May 10th
    13 Files
  • 11
    May 11th
    17 Files
  • 12
    May 12th
    22 Files
  • 13
    May 13th
    11 Files
  • 14
    May 14th
    9 Files
  • 15
    May 15th
    0 Files
  • 16
    May 16th
    0 Files
  • 17
    May 17th
    0 Files
  • 18
    May 18th
    0 Files
  • 19
    May 19th
    0 Files
  • 20
    May 20th
    0 Files
  • 21
    May 21st
    0 Files
  • 22
    May 22nd
    0 Files
  • 23
    May 23rd
    0 Files
  • 24
    May 24th
    0 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close