CVE-2020-24863
MEDIUM
5.5
CVSS Score
Published: September 3, 2020 at 02:34 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
2 products affected across 2 vendorsFreeBSDMidnightbsd
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%
Description
A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.2.71.3 ≤ v ≤ 2020-08-19
Affected range stops below 1.2.7, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_CONFIRMExploitVendor Advisory
Source: [email protected]
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txtx_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.cx_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.ascx_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://www.midnightbsd.org/notes/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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