CVE-2021-30858
published 2021-08-24CVE-2021-30858: 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…
high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2021-11-17
Exploited in the wild
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.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios | — | — |
| apple | ios | >= unspecified < 14.8 | 14.8 |
| apple | ios_14.8_and_ipados | — | — |
| apple | ipados | >= 13.1 < 14.8 | 14.8 |
| apple | iphone_os | < 12.5.5 | 12.5.5 |
| apple | iphone_os | >= 13.0 < 14.8 | 14.8 |
| apple | macos | < 11.6 | 11.6 |
| apple | macos | >= unspecified < 11.6 | 11.6 |
| apple | macos_big_sur | — | — |
| apple | safari | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | webkit2gtk | < webkit2gtk 2.32.4-1 (bookworm) | webkit2gtk 2.32.4-1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.32.4-1 (bookworm) | webkit2gtk 2.32.4-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH
vulncheck8.8HIGH
cisa8.8HIGH