[Bug 1475389] New: CVE-2017-11571 fontforge: Stack-buffer overflow in addnibble function

https://bugzilla.redhat.com/show_bug.cgi?id=1475389

            Bug ID: 1475389
           Summary: CVE-2017-11571 fontforge: Stack-buffer overflow in
                    addnibble function
           Product: Security Response
         Component: vulnerability
          Keywords: Security
          Severity: low
          Priority: low
          Assignee: security-response-team(a)redhat.com
          Reporter: anemec(a)redhat.com
                CC: eng-i18n-bugs(a)redhat.com,
                    fonts-bugs(a)lists.fedoraproject.org, kevin(a)scrye.com,
                    paul(a)frixxon.co.uk, pnemade(a)redhat.com




FontForge 20161012 is vulnerable to a stack-based buffer overflow in addnibble
(parsettf.c) resulting in DoS via a crafted otf file.

Upstream issue:

https://github.com/fontforge/fontforge/issues/3087

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[Bug 1475389] CVE-2017-11571 fontforge: Stack-buffer overflow in addnibble function

https://bugzilla.redhat.com/show_bug.cgi?id=1475389

Andrej Nemec <anemec(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |WONTFIX
        Last Closed|                            |2017-07-26 10:44:00



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[Bug 1475389] CVE-2017-11571 fontforge: Stack-buffer overflow in addnibble function

https://bugzilla.redhat.com/show_bug.cgi?id=1475389

Andrej Nemec <anemec(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends On|                            |1475398



--- Comment #1 from Andrej Nemec <anemec(a)redhat.com&gt; ---
Created fontforge tracking bugs for this issue:

Affects: fedora-all [bug 1475398]


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1475398
[Bug 1475398] CVE-2017-11568 CVE-2017-11569 CVE-2017-11570 CVE-2017-11571
CVE-2017-11572 CVE-2017-11573 CVE-2017-11574 CVE-2017-11575 CVE-2017-11576
CVE-2017-11577 fontforge: various flaws [fedora-all]
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[Bug 1475389] CVE-2017-11571 fontforge: Stack-buffer overflow in addnibble function

https://bugzilla.redhat.com/show_bug.cgi?id=1475389



--- Comment #2 from Parag Nemade <pnemade(a)redhat.com&gt; ---
Fixed in rawhide build fontforge-20170731-1.fc27

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[Bug 1475389] CVE-2017-11571 fontforge: Stack-buffer overflow in addnibble function

https://bugzilla.redhat.com/show_bug.cgi?id=1475389
Bug 1475389 depends on bug 1475398, which changed state.

Bug 1475398 Summary: CVE-2017-11568 CVE-2017-11569 CVE-2017-11570 CVE-2017-11571
CVE-2017-11572 CVE-2017-11573 CVE-2017-11574 CVE-2017-11575 CVE-2017-11576 CVE-2017-11577
fontforge: various flaws [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1475398

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |NEXTRELEASE



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