Stack-based buffer overflow in the cf2_hintmap_build function in cff/cf2hints.c in FreeType before 2.5.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large number of stem hints in a font file.

Updated freetype2 packages fix security vulnerabilities :

It was reported that Freetype before 2.5.3 suffers from an out-of-bounds stack-based read/write flaw in cf2_hintmap_build() in the CFF rasterizing code, which could lead to a buffer overflow (CVE-2014-2240).

It was also reported that Freetype before 2.5.3 has a denial-of-service vulnerability in the CFF rasterizing code, due to a reachable assertion (CVE-2014-2241).

It was reported that Freetype before 2.5.4 suffers from an out-of-bounds stack-based read/write flaw in cf2_hintmap_build() in the CFF rasterizing code, which could lead to a buffer overflow. This is due to an incomplete fix for CVE-2014-2240.

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 2.5.4enforces 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).

New freetype packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix a security issue.

This update prevents freetype from a buffer overflow.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Update to 2.5.4\r\n* Updated subpixel rendering patch to     2.5.3

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Werner LEMBERG reports :

The fix for CVE-2014-2240 was not 100% complete to fix the issue from the CVE completly.

The remote host is affected by the vulnerability described in GLSA-201408-02 (FreeType: Arbitrary code execution)

    A stack-based buffer overflow exists in Freetype&rsquo;s cf2_hintmap_build       function in cff/cf2hints.c.
  Impact :

    A remote attacker may be able to execute arbitrary code or cause a       Denial of Service condition via specially crafted font file.
  Workaround :

    There is no known workaround at this time.

Fix CVE-2014-2240 and CVE-2014-2241 (RHBZ #1074649)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Fix CVE-2014-2240 and CVE-2014-2241 (RHBZ #1074648)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Mateusz Jurczyk discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges.
(CVE-2014-2240, CVE-2014-2241).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
82342	Mandriva Linux Security Advisory : freetype2 (MDVSA-2015:089)	Nessus	Mandriva Local Security Checks	high
80569	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : freetype (SSA:2015-016-01)	Nessus	Slackware Local Security Checks	high
80338	Fedora 20 : freetype-2.5.0-7.fc20 (2014-16854)	Nessus	Fedora Local Security Checks	high
80320	Fedora 20 : mingw-freetype-2.5.4-1.fc20 (2014-17580)	Nessus	Fedora Local Security Checks	high
80315	Fedora 21 : mingw-freetype-2.5.4-1.fc21 (2014-17550)	Nessus	Fedora Local Security Checks	high
80234	Fedora 21 : freetype-2.5.3-13.fc21 (2014-16840)	Nessus	Fedora Local Security Checks	high
79795	FreeBSD : freetype -- Out of bounds stack-based read/write (567beb1e-7e0a-11e4-b9cc-bcaec565249c)	Nessus	FreeBSD Local Security Checks	high
77110	GLSA-201408-02 : FreeType: Arbitrary code execution	Nessus	Gentoo Local Security Checks	high
74396	Fedora 19 : mingw-freetype-2.4.12-3.fc19 (2014-6833)	Nessus	Fedora Local Security Checks	high
74394	Fedora 20 : mingw-freetype-2.5.0.1-2.fc20 (2014-6830)	Nessus	Fedora Local Security Checks	high
73076	Ubuntu 13.10 : freetype vulnerabilities (USN-2148-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2014-2240

critical

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high