CVE-2020-27820

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

CVSS v3.0 4.7 MEDIUM
CVSS v2.0 4.7 MEDIUM

4.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.7^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 3.4 / Impact : 6.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://lore.kernel.org/dri-devel/20201103194912.184413-4-jcline@redhat.com/	Exploit Mailing List Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1901726	Issue Tracking Patch Third Party Advisory
https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline@redhat.com/	Mailing List Patch Vendor Advisory
https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline@redhat.com/	Mailing List Patch Vendor Advisory
https://www.oracle.com/security-alerts/cpujul2022.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Information

Published : 2021-11-03 00:15

Updated : 2022-07-25 18:15

NVD link : CVE-2020-27820

Mitre link : CVE-2020-27820

JSON object : View

Products Affected

fedoraproject

fedora

linux

linux_kernel

CWE

CWE-416

Use After Free

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