CVE-2021-30858

Summary

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.

Affected Software

Weaknesses

• 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.

ADP Enrichment

CVE Program Container

Additional References

• https://support.apple.com/en-us/HT212804
• https://support.apple.com/en-us/HT212807
• http://seclists.org/fulldisclosure/2021/Sep/27
• http://seclists.org/fulldisclosure/2021/Sep/25
• http://seclists.org/fulldisclosure/2021/Sep/29
• http://www.openwall.com/lists/oss-security/2021/09/20/1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/
• http://seclists.org/fulldisclosure/2021/Sep/38
• http://seclists.org/fulldisclosure/2021/Sep/39
• https://www.debian.org/security/2021/dsa-4975
• https://www.debian.org/security/2021/dsa-4976
• https://support.apple.com/kb/HT212824
• http://seclists.org/fulldisclosure/2021/Sep/50
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/
• http://www.openwall.com/lists/oss-security/2021/10/26/9
• http://www.openwall.com/lists/oss-security/2021/10/27/1
• http://www.openwall.com/lists/oss-security/2021/10/27/2
• http://www.openwall.com/lists/oss-security/2021/10/27/4

CISA ADP Vulnrichment

• SSVC:
• Exploitation: active
  • Automatable: no
  • Technical Impact: total

Additional References

• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30858

References

• https://support.apple.com/en-us/HT212804
• https://support.apple.com/en-us/HT212807
• http://seclists.org/fulldisclosure/2021/Sep/27
• http://seclists.org/fulldisclosure/2021/Sep/25
• http://seclists.org/fulldisclosure/2021/Sep/29
• http://www.openwall.com/lists/oss-security/2021/09/20/1
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/
• http://seclists.org/fulldisclosure/2021/Sep/38
• http://seclists.org/fulldisclosure/2021/Sep/39
• https://www.debian.org/security/2021/dsa-4975
• https://www.debian.org/security/2021/dsa-4976
• https://support.apple.com/kb/HT212824
• http://seclists.org/fulldisclosure/2021/Sep/50
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/
• http://www.openwall.com/lists/oss-security/2021/10/26/9
• http://www.openwall.com/lists/oss-security/2021/10/27/1
• http://www.openwall.com/lists/oss-security/2021/10/27/2
• http://www.openwall.com/lists/oss-security/2021/10/27/4

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