Описание
FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 parsing of pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.
A flaw was found in FontForge. This integer overflow vulnerability, located in the parsing of pixels within XBM (X BitMap) files, allows a remote attacker to execute arbitrary code. The issue arises from insufficient validation of user-supplied data, which can lead to an integer overflow before memory allocation. Successful exploitation requires user interaction, such as opening a malicious XBM file, and results in arbitrary code execution in the context of the current process.
Отчет
This vulnerability is rated Important for Red Hat products as it allows remote code execution in FontForge due to an integer overflow when parsing XBM files. Exploitation requires user interaction, where a target must open a malicious XBM file. This affects FontForge across various Red Hat Enterprise Linux versions and Fedora.
Меры по смягчению последствий
To mitigate this issue, users should avoid opening untrusted XBM files with FontForge. If FontForge is not required, consider removing the fontforge package to eliminate the attack vector. For Red Hat Enterprise Linux systems, this can be achieved by running sudo dnf remove fontforge or sudo yum remove fontforge depending on the version. Removing this package may impact functionality that relies on FontForge.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | fontforge | Affected | ||
| Red Hat Enterprise Linux 6 | fontforge | Out of support scope | ||
| Red Hat Enterprise Linux 7 | fontforge | Affected | ||
| Red Hat Enterprise Linux 8 | fontforge | Affected | ||
| Red Hat Enterprise Linux 9 | fontforge | Affected |
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Дополнительная информация
Статус:
7.8 High
CVSS3
Связанные уязвимости
FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 parsing of pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.
FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 parsing of pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.
FontForge GUtils XBM File Parsing Integer Overflow Remote Code Executi ...
FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 parsing of pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.
7.8 High
CVSS3