SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-28204

Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

KEVMEDIUM 6.5EPSS 14.3%

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

An out-of-bounds read was addressed with improved input validation. 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 web content may disclose sensitive information. Apple is aware of a report that this issue may have been actively exploited.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
14.29% probability · 96th percentile
CISA KEV
Listed 22 May 2023 · due 12 June 2023
Weakness
CWE-125
Affected
apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos · 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-2023-28204

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