CVE-2021-30858

CVSS V2 Medium 6.8 CVSS V3 High 8.8
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Overview
  • CVE ID
  • CVE-2021-30858
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-24T19:15:14
  • Last Modified Date
  • 2021-12-03T02:27:20
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* 1 OR 13.1 14.8
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* 1 OR 12.5.5
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* 1 OR 13.0 14.8
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* 1 OR 11.6
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://support.apple.com/en-us/HT212807 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT212804 Release Notes Vendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/25 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Sep/27 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Sep/29 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/20/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/ Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Sep/39 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Sep/38 Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4976 Third Party Advisory
https://www.debian.org/security/2021/dsa-4975 Third Party Advisory
https://support.apple.com/kb/HT212824 Third Party Advisory
http://seclists.org/fulldisclosure/2021/Sep/50 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/ Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/26/9 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/27/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/27/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/27/4 Mailing List Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-30858
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30858
History
Created Old Value New Value Data Type Notes
2022-05-10 06:43:23 Added to TrackCVE
2022-12-05 08:52:01 2021-08-24T19:15Z 2021-08-24T19:15:14 CVE Published Date updated
2022-12-05 08:52:01 2021-12-03T02:27:20 CVE Modified Date updated
2022-12-05 08:52:01 Analyzed Vulnerability Status updated