Vulnerability CVE-2014-9746


Published: 2016-06-07

Description:
The (1) t1_parse_font_matrix function in type1/t1load.c, (2) cid_parse_font_matrix function in cid/cidload.c, (3) t42_parse_font_matrix function in type42/t42parse.c, and (4) ps_parser_load_field function in psaux/psobjs.c in FreeType before 2.5.4 do not check return values, which allows remote attackers to cause a denial of service (uninitialized memory access and application crash) or possibly have unspecified other impact via a crafted font.

Type:

CWE-20

(Improper Input Validation)

Vendor: Debian
Product: Debian linux 
Version: 8.0; 7.0;
Vendor: Freetype
Product: Freetype 
Version: 2.5.3;

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=8b281f83e8516535756f92dbf90940ac44bd45e1
http://www.debian.org/security/2015/dsa-3370
http://www.openwall.com/lists/oss-security/2015/09/11/4
http://www.openwall.com/lists/oss-security/2015/09/25/4
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
https://savannah.nongnu.org/bugs/?41309

Related CVE
CVE-2015-9290
In FreeType before 2.6.1, a buffer over-read occurs in type1/t1parse.c on function T1_Get_Private_Dict where there is no check that the new values of cur and limit are sensible before going to Again.
CVE-2018-6942
An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.
CVE-2017-8287
FreeType 2 before 2017-03-26 has an out-of-bounds write caused by a heap-based buffer overflow related to the t1_builder_close_contour function in psaux/psobjs.c.
CVE-2017-8105
FreeType 2 before 2017-03-24 has an out-of-bounds write caused by a heap-based buffer overflow related to the t1_decoder_parse_charstrings function in psaux/t1decode.c.
CVE-2017-7864
FreeType 2 before 2017-02-02 has an out-of-bounds write caused by a heap-based buffer overflow related to the tt_size_reset function in truetype/ttobjs.c.
CVE-2017-7858
FreeType 2 before 2017-03-07 has an out-of-bounds write related to the TT_Get_MM_Var function in truetype/ttgxvar.c and the sfnt_init_face function in sfnt/sfobjs.c.
CVE-2017-7857
FreeType 2 before 2017-03-08 has an out-of-bounds write caused by a heap-based buffer overflow related to the TT_Get_MM_Var function in truetype/ttgxvar.c and the sfnt_init_face function in sfnt/sfobjs.c.
CVE-2016-10328
FreeType 2 before 2016-12-16 has an out-of-bounds write caused by a heap-based buffer overflow related to the cff_parser_run function in cff/cffparse.c.

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