CVE-2020-7463

Summary

In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

Affected Software

Weaknesses

• Use After Free

ADP Enrichment

CVE Program Container

Additional References

• https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc
• https://support.apple.com/kb/HT212317
• https://support.apple.com/kb/HT212319
• https://support.apple.com/kb/HT212325
• https://support.apple.com/kb/HT212323
• https://support.apple.com/kb/HT212324
• https://support.apple.com/kb/HT212321
• https://support.apple.com/kb/HT212318
• http://seclists.org/fulldisclosure/2021/Apr/49
• http://seclists.org/fulldisclosure/2021/Apr/50
• http://seclists.org/fulldisclosure/2021/Apr/59
• http://seclists.org/fulldisclosure/2021/Apr/58
• http://seclists.org/fulldisclosure/2021/Apr/57

References

• https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc
• https://support.apple.com/kb/HT212317
• https://support.apple.com/kb/HT212319
• https://support.apple.com/kb/HT212325
• https://support.apple.com/kb/HT212323
• https://support.apple.com/kb/HT212324
• https://support.apple.com/kb/HT212321
• https://support.apple.com/kb/HT212318
• http://seclists.org/fulldisclosure/2021/Apr/49
• http://seclists.org/fulldisclosure/2021/Apr/50
• http://seclists.org/fulldisclosure/2021/Apr/59
• http://seclists.org/fulldisclosure/2021/Apr/58
• http://seclists.org/fulldisclosure/2021/Apr/57

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