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CVE-2020-7463

MEDIUM
5.5
CVSS Score
Published: March 26, 2021 at 08:48 PM UTC
Updated: June 17, 2026 at 03:24 AM UTC
9 products affected across 2 vendorsmacOSiPhone OSiPadOS

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iCloud· Apple
95%
v < 12.3
Affected range stops below 12.3, so it looks safe — our inference, not a vendor statement
iPadOS· Apple
95%
v < 14.5
Affected range stops below 14.5, so it looks safe — our inference, not a vendor statement
iPhone OS· Apple
95%
v < 14.5
Affected range stops below 14.5, so it looks safe — our inference, not a vendor statement
iTunes· Apple
95%
v < 12.11.3
Affected range stops below 12.11.3, so it looks safe — our inference, not a vendor statement
macOS· Apple
95%
11.0 ≤ v < 11.3
Affected range stops below 11.3, so it looks safe — our inference, not a vendor statement
Safari· Apple
95%
v < 14.1
Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement
tvOS· Apple
95%
v < 14.5
Affected range stops below 14.5, so it looks safe — our inference, not a vendor statement
watchOS· Apple
95%
v < 7.4
Affected range stops below 7.4, so it looks safe — our inference, not a vendor statement
FreeBSD· Freebsd
95%
11.311.3 p111.3 p1011.3 p1111.3 p1211.3 p211.3 p311.3 p411.3 p511.3 p611.3 p711.3 p811.3 p911.411.4 p111.4 p212.112.1 p112.1 p212.1 p312.1 p412.1 p512.1 p612.1 p712.1 p812.2FreeBSD 12.1-RELEASE before p9, 11.4-RELEASE before p3, 11.3-RELEASE before p13

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (13)

Mailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2021/Apr/49
Mailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2021/Apr/50
Mailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2021/Apr/57
Mailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2021/Apr/58
Mailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2021/Apr/59
x_refsource_MISCVendor Advisory
Source: [email protected]
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://support.apple.com/kb/HT212317
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://support.apple.com/kb/HT212318

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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