macOS
CVE-2021-30844
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A remote attacker may be able to leak memory.
AnalysisAI
A logic issue was addressed with improved state management. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Memory Leak (CWE-401), which allows attackers to exhaust available memory leading to denial of service. A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A remote attacker may be able to leak memory. Affected products include: Apple Mac Os X, Apple Macos.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Ensure all allocated memory is properly freed. Use RAII patterns or garbage-collected languages.
An unauthenticated remote code execution vulnerability exists in Remote for Mac, a macOS remote control utility develope
A use-after-free issue was addressed with improved memory management. Rated high severity (CVSS 8.8), this vulnerability
Apple's kernel across all platforms (iOS, macOS, watchOS, visionOS, tvOS) contains a memory corruption vulnerability (CV
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remot
The issue was addressed with improved checks. Rated high severity (CVSS 7.0). Actively exploited in the wild (cisa kev)
A logic issue was addressed with improved restrictions. Rated high severity (CVSS 7.8), this vulnerability is no authent
In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environmen
A race condition was addressed with additional validation. Rated high severity (CVSS 7.0), this vulnerability is no auth
This issue was addressed with improved checks. Rated critical severity (CVSS 10.0), this vulnerability is remotely explo
When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data t
When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from
Same weakness CWE-401 – Memory Leak
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today