Known exploited vulnerability
CVE-2023-32434
The short answer
CVE-2023-32434 affects Apple macOS and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-06-23: attackers are using it, so patch it first.
What it is
An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
Weakness: CWE-190.
Severity
7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Jun 23, 2023
Federal due date Jul 14, 2023
EPSS, next 30 days
58%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
macOS, iOS and iPadOS, watchOS. NVD's record lists the exact affected versions.
References
- support.apple.com/en-us/HT213808 Vendor Advisory
- support.apple.com/en-us/HT213809 Vendor Advisory
- support.apple.com/en-us/HT213810 Vendor Advisory
- support.apple.com/en-us/HT213811 Vendor Advisory
- support.apple.com/en-us/HT213812 Vendor Advisory
- support.apple.com/en-us/HT213813 Vendor Advisory
- support.apple.com/en-us/HT213814 Vendor Advisory
- support.apple.com/kb/HT213990 Vendor Advisory
- support.apple.com/en-us/HT213808 Vendor Advisory
- support.apple.com/en-us/HT213809 Vendor Advisory
- support.apple.com/en-us/HT213810 Vendor Advisory
- support.apple.com/en-us/HT213811 Vendor Advisory
Questions
Is CVE-2023-32434 being exploited?
Yes. CISA added CVE-2023-32434 to its Known Exploited Vulnerabilities catalog on 2023-06-23, with a federal remediation due date of 2023-07-14.
How do I fix CVE-2023-32434?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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