Bug 1626618 – CVE-2018-16646 poppler: infinite recursion in Parser::getObj function in Parser.cc

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Bug 1626618 - (CVE-2018-16646) CVE-2018-16646 poppler: infinite recursion in Parser::getObj function in Parser.cc

Summary:	CVE-2018-16646 poppler: infinite recursion in Parser::getObj function in Pars...

Status:	NEW

Aliases:	CVE-2018-16646

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20180828,reported=2...
Keywords:	Security

Depends On:	1626620 1626621 1626623 1640295
Blocks:	1626626
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Reported:	2018-09-07 14:01 EDT by Laura Pardo
Modified:	2018-10-23 05:50 EDT (History)
CC List:	11 users (show)

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Description Laura Pardo 2018-09-07 14:01:45 EDT

A flaw was found in Poppler 0.68.0, the Parser::getObj() function in Parser.cc may cause infinite recursion via a crafted file. A remote attacker can leverage this for a DoS attack.


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1622951

Comment 1 Laura Pardo 2018-09-07 14:02:23 EDT

Created mingw-poppler tracking bugs for this issue:

Affects: fedora-all [bug 1626621]


Created poppler tracking bugs for this issue:

Affects: fedora-all [bug 1626620]

Comment 3 Scott Gayou 2018-10-17 12:49:56 EDT

Reproduces on RHEL-7.

```Syntax Error (1452): Dictionary key must be a name object
Syntax Error (1454): Dictionary key must be a name object
Syntax Error (1463): Dictionary key must be a name object
Syntax Error (1470): Dictionary key must be a name object
Syntax Error (1476): Dictionary key must be a name object
Syntax Error (1540): Dictionary key must be a name object
Syntax Error (2213): Dictionary key must be a name object
Syntax Error (2223): Dictionary key must be a name object
Syntax Error (2223): Dictionary key must be a name object
Syntax Error (2250): Dictionary key must be a name object
Syntax Error (2253): Dictionary key must be a name object
^C
real	8m32.542s
user	0m23.545s
sys	0m14.576s
```

Gave up after 8 minutes.

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