A deserialization issue was addressed through improved validation.
Affects macOS and watchOS releases before the fixed versions in Apple's advisory, with macOS 11.6 and watchOS 7.6, 12.5 and 14.8 fixing it. No vendor severity rating is given; CVSS scores it 7.5.
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 11.6, 2021, 7.6, 14.8, 12.5
- 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
Apple's macOS, iOS, iPadOS, and watchOS are affected. A sandboxed process could exploit this flaw to bypass sandbox restrictions, gaining access it should not have.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..
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 macOS
From unspecified · fixed in 11.6
- Apple macOS
From unspecified · fixed in 2021
- Apple watchOS
From unspecified · fixed in 7.6
- Apple watchOS
From unspecified · fixed in 14.8
- Apple watchOS
From unspecified · fixed in 12.5
References 5
Questions about CVE-2021-31010
What does this mean?
A deserialization issue, meaning data read back into an object could be handled unsafely, was addressed through improved validation. The advisory says a sandboxed process may be able to circumvent sandbox restrictions.Source: support.apple.com
Am I affected, and how do I check?
The listed affected releases are macOS and watchOS builds from before the fixed versions: macOS 11.6 (with a separate entry listing 2021) and watchOS 7.6, 12.5 and 14.8. To check a Mac, use the Apple menu, About This Mac, and compare the macOS version; for a watch, check the version in the Watch app on the paired iPhone under General, About.Source: support.apple.com
What should I do about it?
Update macOS to 11.6 or later and watchOS to the fixed release for your line, which is 7.6, 12.5 or 14.8. The advisory also lists iOS 14.8 and iPadOS 14.8 as fixed versions.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-08-25, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data