Programski paket FreeType ima brojne sigurnosne nedostatke koji su ispravljeni novom nadogradnjom. Ranjivosti omogućuju zlonamjernom napadaču pokretanje proizvoljnog programskog koda te izvođenje napada uskraćivanjem usluga.

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Ubuntu Security Notice USN-1403-1
March 23, 2012

freetype vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

FreeType could be made to crash or run programs as your login if it opened a
specially crafted font file.

Software Description:
- freetype: FreeType 2 is a font engine library

Details:

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1126)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1127)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed TrueType font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1128)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed Type42 font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1129)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed PCF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1130)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed TrueType font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1131)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed Type1 font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1132)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF 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-2012-1133)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed Type1 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-2012-1134)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed TrueType font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1135)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF 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-2012-1136)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1137)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed TrueType font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1138)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1139)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed PostScript font files. If a user were tricked into using a specially
crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1140)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash. (CVE-2012-1141)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed Windows FNT/FON font files. If a user were tricked into using a
specially crafted font file, a remote attacker could cause FreeType to crash.
(CVE-2012-1142)

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. (CVE-2012-1143)

Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed TrueType 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-2012-1144)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
  libfreetype6                    2.4.4-2ubuntu1.2

Ubuntu 11.04:
  libfreetype6                    2.4.4-1ubuntu2.3

Ubuntu 10.10:
  libfreetype6                    2.4.2-2ubuntu0.4

Ubuntu 10.04 LTS:
  libfreetype6                    2.3.11-1ubuntu2.6

Ubuntu 8.04 LTS:
  libfreetype6                    2.3.5-1ubuntu4.8.04.9

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1403-1
  CVE-2012-1126, CVE-2012-1127, CVE-2012-1128, CVE-2012-1129,
  CVE-2012-1130, CVE-2012-1131, CVE-2012-1132, CVE-2012-1133,
  CVE-2012-1134, CVE-2012-1135, CVE-2012-1136, CVE-2012-1137,
  CVE-2012-1138, CVE-2012-1139, CVE-2012-1140, CVE-2012-1141,
  CVE-2012-1142, CVE-2012-1143, CVE-2012-1144

Package Information:
  https://launchpad.net/ubuntu/+source/freetype/2.4.4-2ubuntu1.2
  https://launchpad.net/ubuntu/+source/freetype/2.4.4-1ubuntu2.3
  https://launchpad.net/ubuntu/+source/freetype/2.4.2-2ubuntu0.4
  https://launchpad.net/ubuntu/+source/freetype/2.3.11-1ubuntu2.6
  https://launchpad.net/ubuntu/+source/freetype/2.3.5-1ubuntu4.8.04.9