The vulnerability of the Windows operating system, which allows a hacker to increase their privileges

A vulnerability that allows for increased privileges exists in vulnerable components and is related to the processing of objects from specially crafted font files. Exploiting this vulnerability enables a malicious actor to execute arbitrary code with elevated privileges...

The vulnerability of Thunderbird software, which allows a malicious actor to compromise the confidentiality, integrity, and accessibility of protected information.

The use of this tool after its release in FontTableRec within Mozilla Firefox, Firefox ESR, and Thunderbird allows malicious actors who operate remotely to execute arbitrary code by improperly handling the fonts contained in MathML. This leads to incorrect processing of the DirectWrite font objec...

The vulnerability of the Windows operating system, allowing a perpetrator to execute arbitrary code

The vulnerability that allows for remote execution of code is related to improper processing of TrueType fonts by the kernel-level driver in Windows. If this vulnerability is exploited successfully, a malicious individual can execute arbitrary code at the kernel level. As a result, they can insta...

The vulnerability of the Windows operating system allows a perpetrator to execute arbitrary code or cause a service failure.

A vulnerability that allows for remote execution of code exists in vulnerable components and is related to the processing of specially crafted font files. Exploiting this vulnerability enables remote execution of code, provided that the user opens a specially crafted file or webpage. This...

The vulnerability of the Firefox browser, which allows a malicious actor to compromise the confidentiality, integrity, and accessibility of protected information.

The use of this feature after release in the FontTableRec destructor in Mozilla Firefox allows malicious actors operating remotely to execute arbitrary code by improperly using fonts contained in MathML, resulting in incorrect processing of the DirectWrite font object...

The vulnerability in the Firefox ESR software allows a malicious individual to compromise the confidentiality, integrity, and accessibility of protected information.

The use of this feature after release in FontTableRec in Mozilla Firefox ESR allows malicious actors operating remotely to execute arbitrary code by improperly using fonts contained in MathML, resulting in incorrect processing of the DirectWrite font object...

Vulnerability of Microsoft Office software, which allows a malicious actor to compromise the confidentiality, integrity, and accessibility of protected information

A vulnerability that allows for remote execution of code exists in vulnerable components and is related to the processing of specially crafted font files. Exploiting this vulnerability enables remote execution of code, provided that the user opens a specially crafted file or webpage. Exploiting...

The vulnerability of Microsoft Lync Server software allows a remote attacker to compromise the confidentiality, integrity, and accessibility of protected information.

A vulnerability that allows for remote execution of code exists in vulnerable components and is related to the processing of specially crafted font files. Exploiting this vulnerability enables remote execution of code, provided that the user opens a specially crafted file or webpage. Exploiting...

The vulnerability of the Firefox ESR browser, which allows a malicious individual to execute arbitrary code

Mozilla Firefox ESR contains a vulnerability related to errors in the implementation of the cairotruetypeindextoucs4 function in the Cairo library. Exploiting this vulnerability allows malicious individuals to execute arbitrary code remotely, using a specially crafted extension that processes fon...

The vulnerability of the Mozilla SeaMonkey software package, which allows a malicious individual to execute arbitrary code.

Mozilla SeaMonkey’s email client contains a vulnerability related to errors in the implementation of the cairotruetypeindextoucs4 function in the Cairo library. Exploiting this vulnerability allows malicious actors to execute arbitrary code remotely, using a specially crafted extension that...

A year of Windows kernel font fuzzing #2: the techniques

Posted by Mateusz Jurczyk of Google Project Zero In part 1 of the series see here, we discussed the motivation and outcomes of our year long fuzzing effort against the Windows kernel font engine, followed by an analysis of two bug collisions with Keen Team and Hacking Team that ensued as a result...

Oracle Java Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows remote attackers to leak arbitrary information on vulnerable installations of Oracle Java. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of...

A year of Windows kernel font fuzzing #1: the results

Posted by Mateusz Jurczyk of Google Project Zero This post series is about how we used at-scale fuzzing to discover and report a total of 16 vulnerabilities in the handling of TrueType and OpenType fonts in the Windows kernel during the last year. In part 1 here, we present a general overview of...

Microsoft Windows - Custom Font Disable Policy Bypass

Microsoft Windows - Custom Font Disable Policy Bypass Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=779 Windows: Custom Font Disable Policy Bypass Platform: Windows 10 Only Class: Security Feature Bypass Summary: It’s possible to bypass the ProcessFontDisablePolicy check in...

Microsoft Windows - Custom Font Disable Policy Bypass

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=779 Windows: Custom Font Disable Policy Bypass Platform: Windows 10 Only Class: Security Feature Bypass Summary: It’s possible to bypass the ProcessFontDisablePolicy check in win32...

Microsoft Windows Kernel - 'ATMFD.dll' NamedEscape 0x250C Pool Corruption (MS16-074)

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=785 The Adobe Type Manager Font Driver ATMFD.DLL responsible for handling PostScript and OpenType fonts in the Windows kernel provides a channel of communication with user-mode applications via an undocumented gdi32!NamedEscape API...

Microsoft Windows - Custom Font Disable Policy Bypass

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=779 Windows: Custom Font Disable Policy Bypass Platform: Windows 10 Only Class: Security Feature Bypass Summary: It’s possible to bypass the ProcessFontDisablePolicy check in win32k to load a custom font from an arbitrary file on...

Microsoft Windows Kernel - ATMFD.dll NamedEscape 0x250C Pool Corruption (MS16-074)

Microsoft Windows Kernel - ATMFD.dll NamedEscape 0x250C Pool Corruption MS16-074 Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=785 The Adobe Type Manager Font Driver ATMFD.DLL responsible for handling PostScript and OpenType fonts in the Windows kernel provides a channel of...

CVE-2016-3220

atmfd.dll in the Adobe Type Manager Font Driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges via a crafted application, aka...

Privilege escalation

atmfd.dll in the Adobe Type Manager Font Driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges via a crafted application, aka...