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Bug 1302365 - pdflatex crashes with SIGABRT when trying to process corrupted file
Summary: pdflatex crashes with SIGABRT when trying to process corrupted file
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: poppler
Version: 6.8
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: rc
: ---
Assignee: Marek Kašík
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks: 1363705
TreeView+ depends on / blocked
 
Reported: 2016-01-27 15:51 UTC by Marek Haicman
Modified: 2017-03-21 09:59 UTC (History)
1 user (show)

Fixed In Version: poppler-0.12.4-11.el6
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-03-21 09:59:49 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
simple tex file used for reproduction of bug (124 bytes, text/plain)
2016-01-27 15:52 UTC, Marek Haicman 		no flags Details
corrupted pdf trigger (236.03 KB, application/pdf)
2016-01-27 15:52 UTC, Marek Haicman 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
FreeDesktop.org 25756 0 None None None 2016-08-04 12:02:21 UTC
Red Hat Product Errata RHBA-2017:0637 0 normal SHIPPED_LIVE evince and poppler bug fix update 2017-03-21 12:30:52 UTC

Description Marek Haicman 2016-01-27 15:51:06 UTC 
Description of problem:
When pdflatex is fed with corrupted input, it crashes and coredumps (SIGABRT, exitcode 134)


Version-Release number of selected component (if applicable):
texlive-2007-60.el6_7

How reproducible:
reliably

Steps to Reproduce:
1. put reproducer and pdf file in directory
2. pdflatex reproducer.tex
3. observe dump

Actual results:
coredump

Expected results:
graceful failure

Additional info:
Comment 1 Marek Haicman 2016-01-27 15:52:09 UTC 
Created attachment 1118825 [details]
simple tex file used for reproduction of bug
Comment 2 Marek Haicman 2016-01-27 15:52:53 UTC 
Created attachment 1118826 [details]
corrupted pdf trigger
Comment 3 Than Ngo 2016-07-21 14:38:10 UTC 
it looks like a bug in poppler.

(gdb) bt
#0  0x000000349c2325e5 in raise () from /lib64/libc.so.6
#1  0x000000349c233dc5 in abort () from /lib64/libc.so.6
#2  0x000000000047bf98 in dictGetKey () at /usr/include/poppler/Object.h:307
#3  copyFontDict () at pdftoepdf.cc:320
#4  writeRefs () at pdftoepdf.cc:599
#5  write_epdf () at pdftoepdf.cc:958
#6  0x0000000000478026 in writeimage (img=0) at writeimg.c:350
#7  0x000000000044b8c6 in zpdfwriteimage (n=<value optimized out>) at pdftex2.c:303
#8  0x000000000044ec61 in zpdfshipout (p=463, shippingpage=1) at pdftex2.c:2775
#9  0x000000000046118e in maincontrol () at pdftex3.c:5368
#10 0x0000000000411e23 in mainbody () at pdftexini.c:5664
#11 0x0000000000464e0e in main (ac=<value optimized out>, av=<value optimized out>) at pdftexextra.c:349

following patch fixes the crash

diff -Nur poppler-0.12.4/poppler/Parser.cc.than poppler-0.12.4/poppler/Parser.cc
--- poppler-0.12.4/poppler/Parser.cc.than      2016-07-21 16:33:48.191383459 +0200
+++ poppler-0.12.4/poppler/Parser.cc   2016-07-21 16:33:56.982126084 +0200
@@ -180,7 +180,7 @@
   } else {
     error(getPos(), "Bad 'Length' attribute in stream");
     obj.free();
-    return NULL;
+    length = 0;
   }
 
   // check for length in damaged file


reassign to correct component
Comment 4 Marek Kašík 2016-08-04 12:02:21 UTC 
Thank you for the patch. I'm setting devel_ack+ for this bug.
Comment 9 errata-xmlrpc 2017-03-21 09:59:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2017-0637.html
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