Apple · iOS, iPadOS, and macOS
CVE-2021-1871
Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability
무엇인가
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
CISA: Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
할 일
Apply updates per vendor instructions.
미국 연방 기관 조치 기한: 2021년 11월 17일
Apple의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2025. 8. 21. | Out-of-Bounds Write | iOS, iPadOS, and macOS | 치명적 10.0 | 65% |
| 2023. 9. 11. | ImageIO Buffer Overflow | iOS, iPadOS, and macOS | 높음 7.8 | 53% |
| 2023. 4. 10. | IOSurfaceAccelerator Out-of-Bounds Write | iOS, iPadOS, and macOS | 높음 8.6 | 23% |
| 2023. 3. 30. | Out-of-Bounds Write | iOS, iPadOS, and macOS | 높음 7.8 | 5.2% |
| 2022. 9. 14. | Remote Code Execution | iOS, iPadOS, and macOS | 높음 7.8 | 5.6% |
| 2022. 9. 8. | Input Validation | iOS, iPadOS, and macOS | 보통 5.5 | 3.2% |
| 2022. 2. 11. | Webkit Use-After-Free | iOS, iPadOS, and macOS | 높음 8.8 | 16% |
| 2021. 11. 3. | WebKit Remote Code Execution | iOS, iPadOS, and macOS | 치명적 9.8 | 7.7% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.