[Bug 1191096] New: CVE-2014-9673 freetype: Integer signedness error in the Mac_Read_POST_Resource function in base/ftobjs.c
6:52 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Bug ID: 1191096
Summary: CVE-2014-9673 freetype: Integer signedness error in
the Mac_Read_POST_Resource function in base/ftobjs.c
Product: Security Response
Component: vulnerability
Keywords: Security
Severity: medium
Priority: medium
Assignee: security-response-team(a)redhat.com
Reporter: vkaigoro(a)redhat.com
CC: behdad(a)fedoraproject.org,
fonts-bugs(a)lists.fedoraproject.org,
kevin(a)tigcc.ticalc.org, mkasik(a)redhat.com
Common Vulnerabilities and Exposures assigned CVE-2014-9673 to the following
issue:
Integer signedness error in the Mac_Read_POST_Resource function in
base/ftobjs.c
in FreeType before 2.5.4 allows remote attackers to cause a denial of service
(heap-based buffer overflow) or possibly have unspecified other impact via a
crafted Mac font.
http://code.google.com/p/google-security-research/issues/detail?id=154
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=35252a...
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7 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: Integer signedness error in the Mac_Read_POST_Resource function in base/ftobjs.c
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Vasyl Kaigorodov <vkaigoro(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |1191102
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2:58 p.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Tomas Hoger <thoger(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|medium |high
Fixed In Version| |freetype 2.5.4
Summary|CVE-2014-9673 freetype: |CVE-2014-9673 freetype:
|Integer signedness error in |integer signedness error in
|the Mac_Read_POST_Resource |Mac_Read_POST_Resource()
|function in base/ftobjs.c |leading to heap-based
| |buffer overflow
Whiteboard|impact=moderate,public=2014 |impact=important,public=201
|1124,reported=20150210,sour |41124,reported=20150210,sou
|ce=cve,cvss2=3.7/AV:L/AC:H/ |rce=cve,cvss2=6.8/AV:N/AC:M
|Au:N/C:P/I:P/A:P,fedora-all |/Au:N/C:P/I:P/A:P,cwe=CWE-2
|/freetype=affected,rhel-5/f |0->CWE-122,rhel-4/freetype=
|reetype=new,rhel-6/freetype |wontfix,rhel-5/freetype=aff
|=new,rhel-7/freetype=new |ected,rhel-6/freetype=affec
| |ted,rhel-7/freetype=affecte
| |d,rhev-m-3/mingw-virt-viewe
| |r=affected,fedora-all/freet
| |ype=affected,fedora-all/min
| |gw-freetype=affected,epel-7
| |/mingw-freetype=affected
Severity|medium |high
--- Doc Text *updated* ---
An integer signedness flaw, leading to heap-based buffer overflows, was found in the way
FreeType handled Mac fonts. If a specially-crafted font file was loaded by an application
linked against FreeType, it could cause the application to crash or, potentially, execute
arbitrary code with the privileges of the user running the application.
--- Comment #1 from Tomas Hoger <thoger(a)redhat.com> ---
(Private) upstream bug:
https://savannah.nongnu.org/bugs/?43539
Issue was fixed upstream in 2.5.4.
This issue was reported as being a flaw in the boundary check added to fix
CVE-2010-2808 (see bug 621907) by using negative rlen value. However, the
check can not be reached with negative rlen, see:
https://code.google.com/p/google-security-research/issues/detail?id=154#c6
There is another signedness issue in the part of the function that computes the
amount of memory needed to store font resources. Negative resource length
value can lead to insufficient buffer allocation. However, this issue is
closely related to what was reported as CVE-2014-9674 (bug 1191190). The
boundary between the issues, and whether they need/should to be treated as
separate CVEs is not obvious.
Complete upstream fix that was applied to address these two issues is noted in
bug 1191190 comment 4.
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10:06 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
--- Doc Text *updated* by Martin Prpic <mprpic(a)redhat.com> ---
An integer signedness flaw, leading to a heap-based buffer overflow, was found in the way
FreeType handled Mac fonts. If a specially crafted font file was loaded by an application
linked against FreeType, it could cause the application to crash or, potentially, execute
arbitrary code with the privileges of the user running the application.
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3:45 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Martin Prpic <mprpic(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Whiteboard|impact=important,public=201 |impact=important,public=201
|41124,reported=20150210,sou |41124,reported=20150210,sou
|rce=cve,cvss2=6.8/AV:N/AC:M |rce=cve,cvss2=6.8/AV:N/AC:M
|/Au:N/C:P/I:P/A:P,cwe=CWE-2 |/Au:N/C:P/I:P/A:P,cwe=CWE-2
|0->CWE-122,rhel-4/freetype= |0->CWE-122,rhel-4/freetype=
|wontfix,rhel-5/freetype=aff |wontfix,rhel-5/freetype=won
|ected,rhel-6/freetype=affec |tfix,rhel-6/freetype=affect
|ted,rhel-7/freetype=affecte |ed,rhel-7/freetype=affected
|d,rhev-m-3/mingw-virt-viewe |,rhev-m-3/mingw-virt-viewer
|r=affected,fedora-all/freet |=affected,fedora-all/freety
|ype=affected,fedora-all/min |pe=affected,fedora-all/ming
|gw-freetype=affected,epel-7 |w-freetype=affected,epel-7/
|/mingw-freetype=affected |mingw-freetype=affected
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8:09 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Martin Prpic <mprpic(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends On| |1197737
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8:09 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Martin Prpic <mprpic(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends On| |1197738
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8:09 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Martin Prpic <mprpic(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends On| |1197739
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8:09 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Martin Prpic <mprpic(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends On| |1197740
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12:59 p.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
--- Comment #4 from errata-xmlrpc <errata-xmlrpc(a)redhat.com> ---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Via RHSA-2015:0696 https://rhn.redhat.com/errata/RHSA-2015-0696.html
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2:40 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Tomas Hoger <thoger(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |CLOSED
Resolution|--- |ERRATA
Last Closed| |2015-03-18 03:40:46
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4:50 p.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in
Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Vincent Danen <vdanen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Whiteboard|impact=important,public=201 |impact=important,public=201
|41124,reported=20150210,sou |41124,reported=20150210,sou
|rce=cve,cvss2=6.8/AV:N/AC:M |rce=cve,cvss2=6.8/AV:N/AC:M
|/Au:N/C:P/I:P/A:P,cwe=CWE-2 |/Au:N/C:P/I:P/A:P,cwe=CWE-2
|0->CWE-122,rhel-4/freetype= |0->CWE-122,rhel-4/freetype=
|wontfix,rhel-5/freetype=won |wontfix,rhel-5/freetype=won
|tfix,rhel-6/freetype=affect |tfix,rhel-6/freetype=notaff
|ed,rhel-7/freetype=affected |ected,rhel-7/freetype=affec
|,rhev-m-3/mingw-virt-viewer |ted,rhev-m-3/mingw-virt-vie
|=affected,fedora-all/freety |wer=affected,fedora-all/fre
|pe=affected,fedora-all/ming |etype=affected,fedora-all/m
|w-freetype=affected,epel-7/ |ingw-freetype=affected,epel
|mingw-freetype=affected |-7/mingw-freetype=affected
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4:29 a.m.
New subject: [Bug 1191096] CVE-2014-9673 freetype: integer signedness error in
Mac_Read_POST_Resource() leading to heap-based buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=1191096
Ján Rusnačko <jrusnack(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Whiteboard|impact=important,public=201 |impact=important,public=201
|41124,reported=20150210,sou |41124,reported=20150210,sou
|rce=cve,cvss2=6.8/AV:N/AC:M |rce=cve,cvss2=6.8/AV:N/AC:M
|/Au:N/C:P/I:P/A:P,cwe=CWE-2 |/Au:N/C:P/I:P/A:P,cwe=CWE-2
|0->CWE-122,rhel-4/freetype= |0->CWE-122,rhel-4/freetype=
|wontfix,rhel-5/freetype=won |wontfix,rhel-5/freetype=won
|tfix,rhel-6/freetype=notaff |tfix,rhel-6/freetype=affect
|ected,rhel-7/freetype=affec |ed,rhel-7/freetype=affected
|ted,rhev-m-3/mingw-virt-vie |,rhev-m-3/mingw-virt-viewer
|wer=affected,fedora-all/fre |=affected,fedora-all/freety
|etype=affected,fedora-all/m |pe=affected,fedora-all/ming
|ingw-freetype=affected,epel |w-freetype=affected,epel-7/
|-7/mingw-freetype=affected |mingw-freetype=affected
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