FreeType 是免費、高品質的可攜式字型引擎，可開啟及管理字型檔。它也可以有效載入、提示及轉譯個別字符。

在 FreeType 處置 TrueType 字型 (TTF)、字符點陣圖分散格式 (BDF)、Windows .fnt 和 .fon、以及 PostScript Type 1 字型的方式中發現多個瑕疵。如果使用 FreeType 連結的應用程式載入了特製的字型檔案，可導致應用程式損毀，或可能利用執行應用程式之使用者的權限來執行任意程式碼。(CVE-2012-1134、CVE-2012-1136、CVE-2012-1142、CVE-2012-1144)

在 FreeType 處理多種格式之字型的方式中發現多個瑕疵。當連結 FreeType 的應用程式載入特製的字型檔案時，可導致該應用程式發生損毀。
(CVE-2012-1126、CVE-2012-1127、CVE-2012-1130、CVE-2012-1131、CVE-2012-1132、CVE-2012-1137、CVE-2012-1139、CVE-2012-1140、CVE-2012-1141、CVE-2012-1143)

建議使用者升級至這些更新版套件，其中包含可更正這些問題的反向移植修補程式。必須重新啟動 (登出，接著重新登入) X 伺服器，此更新才能生效。

Mozilla Project 報告：

MFSA 2012-20 其他記憶體安全性危險 (rv:12.0/ rv:10.0.4)

MFSA 2012-21 FreeType v2.4.9 已修正多個安全性瑕疵

MFSA 2012-22 IDBKeyRange 中的釋放後使用問題

MFSA 2012-23 無效的釋放造成 gfxImageSurface 堆積損毀

MFSA 2012-24 可能利用多位元組內容處理錯誤而發動 XSS

MFSA 2012-25 使用 cairo-dwrite 轉譯字型時可能發生記憶體損毀

MFSA 2012-26 因 FindMaxUshortElement 錯誤而使 WebGL.drawElements 可能會讀取不合法的視訊記憶體

MFSA 2012-27 取消頁面載入可能導致 XSS

MFSA 2012-28 原始標頭中不明確的 IPv6 可能會繞過 Web 伺服器存取限制

MFSA 2012-29 因 ISO-2022-KR/ISO-2022-CN 解碼問題而可能導致 XSS

MFSA 2012-30 使用 textImage2D 所造成的 WebGL 內容損毀

MFSA 2012-31 OpenType 清理程式中的差一錯誤

MFSA 2012-32 JavaScript 錯誤可讀取 HTTP 限制和遠端內容

MFSA 2012-33 載入 RSS 和 Atom 摘要時可能會有網站身分偽造問題

According to its banner, the remote Apple iOS device is missing a security update.  Versions of Apple iOS prior to 6.0 are exposed to the following vulnerabilities :

  - Numerous memory errors exist related to handling 'TIFF', 'PNG' and 'JPEG' images and 'ImageIO' that can allow arbitrary code execution. (CVE-2011-1167, CVE-2011-3026, CVE-2011-3048, CVE-2011-3328, CVE-2012-1173, CVE-2012-3726)

  - Several issues exist related to 'CoreGraphics' and 'FreeType' (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)

  - Numerous issues exist related to libxml and can lead to application crashes or arbitrary code execution. (CVE-2011-1944, CVE-2011-2821, CVE-2011-2834, CVE-2011-3919)

  - A stack-based buffer overflow exists related to 'locale ID' and 'International Components for Unicode' (ICU). (CVE-2011-4599)

  - An unitialized memory access issue exists related to 'Sorenson' encoded movie files and 'CoreMedia'. (CVE-2012-3722)

  - An URL handling issue exists related to 'CFNetwork' that can disclose sensitive information. (CVE-2012-3724)

  - The 'DNAv4' protocol discloses sensitive information when connecting to unencrypted Wi-Fi networks. (CVE-2012-3725)

  - A buffer overflow error exists related to 'IPSec' and 'racoon' configuration files. (CVE-2012-3727)

  - An invalid pointer dereference error exists related to the kernel and packet filter ioctls. (CVE-2012-3728)

  - An uninitialized memory access error exists related to the kernel and the Berkeley Packet Filter interpreter. (CVE-2012-3729)

  - Several issues exist related to 'Mail' and the handling of attachments and 'S/MIME' signed messages. (CVE-2012-3730, CVE-2012-3731, CVE-2012-3732)

  - Information disclosure issues exist related to 'Messages', 'Office Viewer', system logs, and 'UIKit'. (CVE-2012-3733, CVE-2012-3734, CVE-2012-3743, CVE-2012-3746)

  - Memory corruption errors exist related to 'OpenGL'. (CVE-2011-3457)

  - Numerous errors exist related to 'Passcode Lock'. (CVE-2012-3735, CVE-2012-3736, CVE-2012-3737, CVE-2012-3738, CVE-2012-3739, CVE-2012-3740)

  - An error exists in 'Restrictions' that can allow unauthorized purchases. (CVE-2012-3741)

  - Errors exist in 'Safari' that are related to misleading URL characters and password auto complete. (CVE-2012-3742, CVE-2012-0680)

  - A buffer overflow error exists related to 'Telephony' and SMS handling. (CVE-2012-3745)

  - Many errors exist related to the bundled 'WebKit' components. (CVE-2011-2845, CVE-2011-3016, CVE-2011-3021, CVE-2011-3027, CVE-2011-3032, CVE-2011-3034, CVE-2011-3035, CVE-2011-3036, CVE-2011-3037, CVE-2011-3038, CVE-2011-3039, CVE-2011-3040, CVE-2011-3041, CVE-2011-3042, CVE-2011-3043, CVE-2011-3044, CVE-2011-3050, CVE-2011-3053, CVE-2011-3059, CVE-2011-3060, CVE-2011-3064, CVE-2011-3067, CVE-2011-3068, CVE-2011-3069, CVE-2011-3071, CVE-2011-3073, CVE-2011-3074, CVE-2011-3075, CVE-2011-3076, CVE-2011-3078, CVE-2011-3081, CVE-2011-3086, CVE-2011-3089, CVE-2011-3090, CVE-2011-3105, CVE-2011-3913, CVE-2011-3924, CVE-2011-3926, CVE-2011-3958, CVE-2011-3966, CVE-2011-3968, CVE-2011-3969, CVE-2011-3971, CVE-2012-0682, CVE-2012-0683, CVE-2012-1520, CVE-2012-1521, CVE-2012-2815, CVE-2012-2818, CVE-2012-3589, CVE-2012-3590, CVE-2012-3591, CVE-2012-3592, CVE-2012-3593, CVE-2012-3594, CVE-2012-3595, CVE-2012-3596, CVE-2012-3597, CVE-2012-3598, CVE-2012-3599, CVE-2012-3600, CVE-2012-3601, CVE-2012-3602, CVE-2012-3603, CVE-2012-3604, CVE-2012-3605, CVE-2012-3608, CVE-2012-3609, CVE-2012-3610, CVE-2012-3611, CVE-2012-3612, CVE-2012-3613, CVE-2012-3614, CVE-2012-3615, CVE-2012-3617, CVE-2012-3618, CVE-2012-3620, CVE-2012-3624, CVE-2012-3625, CVE-2012-3626, CVE-2012-3627, CVE-2012-3628, CVE-2012-3629, CVE-2012-3630, CVE-2012-3631, CVE-2012-3633, CVE-2012-3634, CVE-2012-3635, CVE-2012-3636, CVE-2012-3637, CVE-2012-3638, CVE-2012-3639, CVE-2012-3640, CVE-2012-3641, CVE-2012-3642, CVE-2012-3644, CVE-2012-3645, CVE-2012-3646, CVE-2012-3647, CVE-2012-3648, CVE-2012-3650, CVE-2012-3651, CVE-2012-3652, CVE-2012-3653, CVE-2012-3655, CVE-2012-3656, CVE-2012-3658, CVE-2012-3659, CVE-2012-3660, CVE-2012-3661, CVE-2012-3663, CVE-2012-3664, CVE-2012-3665, CVE-2012-3666, CVE-2012-3667, CVE-2012-3668, CVE-2012-3669, CVE-2012-3670, CVE-2012-3671, CVE-2012-3672, CVE-2012-3673, CVE-2012-3674, CVE-2012-3676, CVE-2012-3677, CVE-2012-3678, CVE-2012-3679, CVE-2012-3680, CVE-2012-3681, CVE-2012-3682, CVE-2012-3683, CVE-2012-3684, CVE-2012-3686, CVE-2012-3691, CVE-2012-3693, CVE-2012-3695, CVE-2012-3696, CVE-2012-3703, CVE-2012-3704, CVE-2012-3706, CVE-2012-3708, CVE-2012-3710, CVE-2012-3747)

ID	名稱	產品	系列	已發布	已更新	嚴重性
61295	Scientific Linux 安全性更新：SL5.x、SL6.x i386/x86_64 上的 freetype	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	critical
58864	FreeBSD : mozilla -- 多個弱點 (380e8c56-8e32-11e1-9580-4061862b8c22)	Nessus	FreeBSD Local Security Checks	2012/4/25	2021/1/6	critical
6589	Apple iOS < 6.0 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	2012/9/24	2019/3/6	high

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