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CVE-2020-27825

Published: Dec 11, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-362
NVD MITRE
5.7CVSSMEDIUM
EPSS Score
0.3%
Top 80.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

CVSS Vector Breakdown

AV:LAC:HPR:HUI:NS:UC:HI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-362

Affected Products

kerneln/a
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
linux kernellinux
On-premOS
Operating Systems
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
linuxoss-projectOperating Systemsaka the linux kernel
redhatcommercialUSOperating Systemsaka red hat
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=1905155
bugzilla.redhat.com
https://www.debian.org/security/2021/dsa-4843
debian.org
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
lists.debian.org
and 22 more references View all →

Timeline

Published
Dec 11, 2020
Last Updated
Nov 21, 2024

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