| CVE ID | CVE-2020-9956 |
| CVSS SCORE | 4.3, AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| AFFECTED VENDORS |
Apple |
| AFFECTED PRODUCTS |
macOS |
| VULNERABILITY DETAILS |
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. 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 RenderGlyph function in libFontParser. Crafted data in a TTF font can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. |
| ADDITIONAL DETAILS |
This issue was addressed in macOS Big Sur 11.0.1 and iOS 14. |
| DISCLOSURE TIMELINE |
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| CREDIT | Mickey Jin & Junzhi Lu of Trend Micro Mobile Security Research Team |
