A buffer overflow issue was addressed with improved memory handling.
Affects iOS and iPadOS before 15.2 on iPhone 6s and later, several iPad models, and iPod touch (7th generation) through the IOMobileFrameBuffer component. Fixed in iOS 15.2 and iPadOS 15.2.
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 15.2
- 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 and iPadOS operating systems. A malicious application could exploit it to run arbitrary code with kernel-level privileges, giving it full control over the device.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. 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 and iPadOS
From unspecified · fixed in 15.2
References 1
support.apple.com
Questions about CVE-2021-30983
What does this mean?
A buffer overflow in the IOMobileFrameBuffer component may let an application execute arbitrary code with kernel privileges. Apple addressed it with improved memory handling.Source: support.apple.com
Am I affected, and how do I check?
iOS and iPadOS versions before 15.2 are listed as affected on iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation). To check the version, open Settings > General > About and read the iOS or iPadOS version.Source: support.apple.com
What should I do about it?
Update to iOS 15.2 or iPadOS 15.2, or a later release, which contains the fix.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-06-27, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data