A memory consumption issue was addressed with improved memory handling.
Affects iOS and iPadOS before 13.5.1, macOS Catalina before the 10.15.5 Supplemental Update, tvOS before 13.4.6, and watchOS before 6.2.6. Fixed in those releases.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
This vulnerability affects Apple's iOS, iPadOS, macOS Catalina, tvOS, and watchOS operating systems. A flaw in memory handling could allow a malicious application to execute arbitrary code with kernel-level privileges.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Apple iOS
From unspecified · fixed in iOS 13.5.1 and iPadOS 13.5.1
- Apple macOS
From unspecified · fixed in macOS Catalina 10.15.5 Supplemental Update
- Apple tvOS
From unspecified · fixed in tvOS 13.4.6
- Apple watchOS
From unspecified · fixed in watchOS 6.2.6
References 1
support.apple.com
Questions about CVE-2020-9859
What does this mean?
A memory consumption issue was addressed with improved memory handling. The advisory says an application may be able to execute arbitrary code with kernel privileges.Source: support.apple.com
Am I affected, and how do I check?
The listed devices are iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch 7th generation running iOS or iPadOS before 13.5.1. macOS, tvOS, and watchOS are also listed as affected before their fixed versions. Check the installed version against these listed versions.Source: support.apple.com
What should I do about it?
Update iOS and iPadOS to 13.5.1, macOS Catalina to the 10.15.5 Supplemental Update, tvOS to 13.4.6, and watchOS to 6.2.6.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data