CVE-2021-30846

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 19 Oct 2021, 13:11
Last modified:03 Aug 2024, 22:48

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.5% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Oct 2021, 13:11
Published
Vulnerability first disclosed
03 Aug 2024, 22:48
Last Modified
Vulnerability information updated

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.50%• Percentile: 66%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • Unknown•iOS and iPadOS

    ≥ unspecified, < 14.8 | ≥ unspecified, < 15

  • apple•ipados

    < 14.8

  • apple•iphone_os

    < 14.8

  • Unknown•macOS

    < 12.0.1

  • apple•safari

    < 15.0 | ≥ unspecified, < 15

  • apple•tvos

    < 15.0 | ≥ unspecified, < 15

  • apple•watchos

    < 8.0 | ≥ unspecified, < 8

  • debian•debian_linux

    10.0 | 11.0

  • fedoraproject•fedora

    33 | 34

References (18)