Debian Security Advisory

DSA-2105-1 freetype -- several vulnerabilities

Date Reported:

07 Sep 2010

Affected Packages:

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2010-1797, CVE-2010-2541, CVE-2010-2805, CVE-2010-2806, CVE-2010-2807, CVE-2010-2808, CVE-2010-3053.

More information:

Several vulnerabilities have been discovered in the FreeType font library. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2010-1797
Multiple stack-based buffer overflows in the cff_decoder_parse_charstrings function in the CFF Type2 CharStrings interpreter in cff/cffgload.c in FreeType allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted CFF opcodes in embedded fonts in a PDF document, as demonstrated by JailbreakMe.
CVE-2010-2541
Buffer overflow in ftmulti.c in the ftmulti demo program in FreeType allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.
CVE-2010-2805
The FT_Stream_EnterFrame function in base/ftstream.c in FreeType does not properly validate certain position values, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file
CVE-2010-2806
Array index error in the t42_parse_sfnts function in type42/t42parse.c in FreeType allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via negative size values for certain strings in FontType42 font files, leading to a heap-based buffer overflow.
CVE-2010-2807
FreeType uses incorrect integer data types during bounds checking, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.
CVE-2010-2808
Buffer overflow in the Mac_Read_POST_Resource function in base/ftobjs.c in FreeType allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted Adobe Type 1 Mac Font File (aka LWFN) font.
CVE-2010-3053
bdf/bdflib.c in FreeType allows remote attackers to cause a denial of service (application crash) via a crafted BDF font file, related to an attempted modification of a value in a static string.

For the stable distribution (lenny), these problems have been fixed in version 2.3.7-2+lenny3

For the unstable distribution (sid) and the testing distribution (squeeze), these problems have been fixed in version 2.4.2-1

We recommend that you upgrade your freetype package.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:: http://security.debian.org/pool/updates/main/f/freetype/freetype_2.3.7-2+lenny3.diff.gz; http://security.debian.org/pool/updates/main/f/freetype/freetype_2.3.7.orig.tar.gz; http://security.debian.org/pool/updates/main/f/freetype/freetype_2.3.7-2+lenny3.dsc
Alpha:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_alpha.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_alpha.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_alpha.udeb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_amd64.deb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_amd64.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_amd64.udeb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_arm.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_arm.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_arm.udeb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_armel.deb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_armel.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_armel.udeb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_armel.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_i386.udeb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_i386.deb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_i386.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_ia64.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_ia64.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_ia64.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_ia64.udeb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_mips.deb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_mips.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_mips.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_mips.udeb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_mipsel.deb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_mipsel.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_mipsel.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_mipsel.udeb
PowerPC:: http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_powerpc.udeb; http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_powerpc.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_powerpc.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_s390.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_s390.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_s390.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_s390.udeb
Sun Sparc:: http://security.debian.org/pool/updates/main/f/freetype/freetype2-demos_2.3.7-2+lenny3_sparc.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-udeb_2.3.7-2+lenny3_sparc.udeb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6_2.3.7-2+lenny3_sparc.deb; http://security.debian.org/pool/updates/main/f/freetype/libfreetype6-dev_2.3.7-2+lenny3_sparc.deb

MD5 checksums of the listed files are available in the original advisory.