Bug 441722 (CVE-2008-1693) - CVE-2008-1693 xpdf: embedded font vulnerability
Summary: CVE-2008-1693 xpdf: embedded font vulnerability
Alias: CVE-2008-1693
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
: 442375 (view as bug list)
Depends On: 442388 442389 442390 442391 442392 442393 443026 444148 444149
TreeView+ depends on / blocked
Reported: 2008-04-09 17:18 UTC by Tomas Hoger
Modified: 2019-09-29 12:24 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2008-05-22 07:12:12 UTC

Attachments (Terms of Use)
Patch for xpdf from Ludwig Nussel (604 bytes, patch)
2008-04-09 17:20 UTC, Tomas Hoger
no flags Details | Diff
Poppler type-checking patch from kees cook (4.71 KB, patch)
2008-04-15 08:49 UTC, Lubomir Kundrak
no flags Details | Diff

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2008:0238 0 normal SHIPPED_LIVE Important: kdegraphics security update 2008-04-17 12:32:02 UTC
Red Hat Product Errata RHSA-2008:0239 0 normal SHIPPED_LIVE Important: poppler security update 2008-04-16 11:06:13 UTC
Red Hat Product Errata RHSA-2008:0240 0 normal SHIPPED_LIVE Important: xpdf security update 2008-04-17 12:31:15 UTC
Red Hat Product Errata RHSA-2008:0262 0 normal SHIPPED_LIVE Important: gpdf security update 2008-05-08 09:17:58 UTC

Description Tomas Hoger 2008-04-09 17:18:23 UTC
Kees Cook of Ubuntu noticed that potential vulnerability allowing arbitrary code
execution via a corrupted PDF embedded fonts was fixed in xpdf code in xpdf 3.02
and poppler 0.6.2.

Fix is mentioned in xpdf changelog - http://www.foolabs.com/xpdf/CHANGES:

"Check for a broken/missing embedded font (this was causing xpdf to crash)."

and is available in poppler source code:


Comment 1 Tomas Hoger 2008-04-09 17:20:47 UTC
Created attachment 301852 [details]
Patch for xpdf from Ludwig Nussel

Comment 7 Lubomir Kundrak 2008-04-14 16:19:14 UTC
This is affected:

xpdf         EL4 Exploitable via SplashOutputDev::updateFont
poppler      EL5 Exploitable via CairoFont::create (evince)
kdegraphics  EL4 Exploitable via SplashOutputDev::updateFont (kpdf)

Tools without graphical output (such as pdftops, from cups, teTeX) are not
vulnerable. Newer kpdf seems to use its own output device implementation.

Comment 12 Lubomir Kundrak 2008-04-15 08:49:08 UTC
Created attachment 302425 [details]
Poppler type-checking patch from kees cook

Comment 15 Tomas Hoger 2008-04-18 06:43:14 UTC
Plublic now, lifting embargo:


Comment 16 Tomas Hoger 2008-04-18 08:08:36 UTC
Short status of Fedora packages:

- xpdf - not affected, fixed upstream version 3.02 is shipped
- poppler - not affected in F8+, fixed upstream versions 0.6.2+ are shipped
- kdegraphics/kpdf - not affected (see comment #7)
- koffice - not affected, xpdf code only used for import, not for displaying

Comment 17 Tomas Hoger 2008-04-18 08:25:51 UTC
Ubuntu security advisory for koffice / kword http://www.ubuntu.com/usn/usn-603-2
adds patch in comment #12, which adds preventive checks, which should prevent
exploitation of similar issues in the future, that may affect kword import
filter as well.

Comment 19 Kevin Kofler 2008-04-18 10:01:30 UTC
Okular in KDE 4 uses the system poppler, so kdegraphics in F9 definitely does 
not need a patch. For F7 and F8, I'll take Lubomir Kundrak's word that it is 
not affected.

Comment 20 Fedora Update System 2008-04-24 16:14:06 UTC
poppler-0.5.4-9.fc7 has been submitted as an update for Fedora 7

Comment 22 Fedora Update System 2008-04-29 20:50:47 UTC
poppler-0.5.4-9.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.

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