CVE-2021-30858
Apple iOS, iPadOS, macOS Use-After-Free Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-30858
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | macOS | unspecified to <11.6 |
| Apple | iOS | unspecified to <14.8 |
References
18 Links- 20210917 APPLE-SA-2021-09-13-3 macOS Big Sur 11.6
- 20210917 APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8
- 20210917 APPLE-SA-2021-09-13-5 Safari 14.1.2
- [oss-security] 20210920 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0005
- 20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8
- 20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6
- 20210924 APPLE-SA-2021-09-23-1 iOS 12.5.5
- [oss-security] 20211026 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006
Record Details
More from Apple
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.