SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-32373

Apple Multiple Products WebKit Use-After-Free Vulnerability

KEVHIGH 8.8EPSS 12.2%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 12 June 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
12.17% probability · 96th percentile
CISA KEV
Listed 22 May 2023 · due 12 June 2023
Weakness
CWE-416
Affected
apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos · redhat/enterprise linux · webkitgtk/webkitgtk\+
Source
product-security@apple.com

CISA notes

Apply updates per vendor instructions. https://support.apple.com/HT213757, https://support.apple.com/HT213758, https://support.apple.com/HT213761, https://support.apple.com/HT213762, https://support.apple.com/HT213764, https://support.apple.com/HT213765; https://nvd.nist.gov/vuln/detail/CVE-2023-32373

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.