VulnerabilityModified
CVE-2021-30851
A memory corruption vulnerability was addressed with improved locking.
HIGH 8.8EPSS 2.39%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.39% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos · debian/debian linux · fedoraproject/fedora
- Source
- product-security@apple.com
References
- http://www.openwall.com/lists/oss-security/2021/10/31/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/
- https://support.apple.com/en-us/HT212814
- https://support.apple.com/en-us/HT212815
- https://support.apple.com/en-us/HT212816
- https://support.apple.com/en-us/HT212819
- https://support.apple.com/kb/HT212869
- https://www.debian.org/security/2021/dsa-4995
- https://www.debian.org/security/2021/dsa-4996
- http://www.openwall.com/lists/oss-security/2021/10/31/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/
- https://support.apple.com/en-us/HT212814
- https://support.apple.com/en-us/HT212815
- https://support.apple.com/en-us/HT212816
- https://support.apple.com/en-us/HT212819
- https://support.apple.com/kb/HT212869
- https://www.debian.org/security/2021/dsa-4995
- https://www.debian.org/security/2021/dsa-4996
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.