Advisories ยป MGASA-2015-0083

Updated freetype2 packages fix security vulnerabilities

Publication date: 24 Feb 2015
Modification date: 24 Feb 2015
Type: security
Affected Mageia releases : 4
CVE: CVE-2014-9656 , CVE-2014-9657 , CVE-2014-9658 , CVE-2014-9660 , CVE-2014-9661 , CVE-2014-9662 , CVE-2014-9663 , CVE-2014-9664 , CVE-2014-9666 , CVE-2014-9667 , CVE-2014-9669 , CVE-2014-9670 , CVE-2014-9671 , CVE-2014-9672 , CVE-2014-9673 , CVE-2014-9674 , CVE-2014-9675

Description

Updated freetype2 packages fix security vulnerabilities:

The tt_sbit_decoder_load_image function in sfnt/ttsbit.c in FreeType before
2.5.4 does not properly check for an integer overflow, which allows remote
attackers to cause a denial of service (out-of-bounds read) or possibly have
unspecified other impact via a crafted OpenType font (CVE-2014-9656).

The tt_face_load_hdmx function in truetype/ttpload.c in FreeType before 2.5.4
does not establish a minimum record size, which allows remote attackers to cause
a denial of service (out-of-bounds read) or possibly have unspecified other
impact via a crafted TrueType font (CVE-2014-9657).

The tt_face_load_kern function in sfnt/ttkern.c in FreeType before 2.5.4
enforces an incorrect minimum table length, which allows remote attackers to
cause a denial of service (out-of-bounds read) or possibly have unspecified
other impact via a crafted TrueType font (CVE-2014-9658).

The _bdf_parse_glyphs function in bdf/bdflib.c in FreeType before 2.5.4 does not
properly handle a missing ENDCHAR record, which allows remote attackers to cause
a denial of service (NULL pointer dereference) or possibly have unspecified
other impact via a crafted BDF font (CVE-2014-9660).

type42/t42parse.c in FreeType before 2.5.4 does not consider that scanning can
be incomplete without triggering an error, which allows remote attackers to
cause a denial of service (use-after-free) or possibly have unspecified other
impact via a crafted Type42 font (CVE-2014-9661).

cff/cf2ft.c in FreeType before 2.5.4 does not validate the return values of
point-allocation functions, which allows remote attackers to cause a denial of
service (heap-based buffer overflow) or possibly have unspecified other impact
via a crafted OTF font (CVE-2014-9662).

The tt_cmap4_validate function in sfnt/ttcmap.c in FreeType before 2.5.4
validates a certain length field before that field's value is completely
calculated, which allows remote attackers to cause a denial of service
(out-of-bounds read) or possibly have unspecified other impact via a crafted
cmap SFNT table (CVE-2014-9663).

FreeType before 2.5.4 does not check for the end of the data during certain
parsing actions, which allows remote attackers to cause a denial of service
(out-of-bounds read) or possibly have unspecified other impact via a crafted
Type42 font, related to type42/t42parse.c and type1/t1load.c (CVE-2014-9664).

The tt_sbit_decoder_init function in sfnt/ttsbit.c in FreeType before 2.5.4
proceeds with a count-to-size association without restricting the count value,
which allows remote attackers to cause a denial of service (integer overflow and
out-of-bounds read) or possibly have unspecified other impact via a crafted
embedded bitmap (CVE-2014-9666).

sfnt/ttload.c in FreeType before 2.5.4 proceeds with offset+length calculations
without restricting the values, which allows remote attackers to cause a denial
of service (integer overflow and out-of-bounds read) or possibly have
unspecified other impact via a crafted SFNT table (CVE-2014-9667).

Multiple integer overflows in sfnt/ttcmap.c in FreeType before 2.5.4 allow
remote attackers to cause a denial of service (out-of-bounds read or memory
corruption) or possibly have unspecified other impact via a crafted cmap SFNT
table (CVE-2014-9669).

Multiple integer signedness errors in the pcf_get_encodings function in
pcf/pcfread.c in FreeType before 2.5.4 allow remote attackers to cause a denial
of service (integer overflow, NULL pointer dereference, and application crash)
via a crafted PCF file that specifies negative values for the first column and
first row (CVE-2014-9670).

Off-by-one error in the pcf_get_properties function in pcf/pcfread.c in FreeType
before 2.5.4 allows remote attackers to cause a denial of service (NULL pointer
dereference and application crash) via a crafted PCF file with a 0xffffffff size
value that is improperly incremented (CVE-2014-9671).

Array index error in the parse_fond function in base/ftmac.c in FreeType before
2.5.4 allows remote attackers to cause a denial of service (out-of-bounds read)
or obtain sensitive information from process memory via a crafted FOND resource
in a Mac font file (CVE-2014-9672).

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 (CVE-2014-9673).

The Mac_Read_POST_Resource function in base/ftobjs.c in FreeType before 2.5.4
proceeds with adding to length values without validating the original values,
which allows remote attackers to cause a denial of service (integer overflow and
heap-based buffer overflow) or possibly have unspecified other impact via a
crafted Mac font (CVE-2014-9674).

bdf/bdflib.c in FreeType before 2.5.4 identifies property names by only
verifying that an initial substring is present, which allows remote attackers to
discover heap pointer values and bypass the ASLR protection mechanism via a
crafted BDF font (CVE-2014-9675).

References

SRPMS

4/core

4/tainted