2021-30788 | Apple macOS FontParser Remote Code Execution (HT212602)
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability was found in Apple macOS (Operating System) (affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown code of the component FontParser. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 07/21/2021 by tr3e as HT212602 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2021-30788 since 04/13/2021. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn’t need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/28/2021). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:
Processing a maliciously crafted tiff file may lead to a denial-of-service or potentially disclose memory contents
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:
This issue was addressed with improved checks.
VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0
Status: Not defined
04/13/2021 CVE assigned
07/21/2021 +99 days Advisory disclosed
07/21/2021 +0 days Countermeasure disclosed
07/23/2021 +2 days VulDB entry created
07/28/2021 +5 days VulDB last updateVendor: https://www.apple.com/
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