CVE-2021-3483

HIGH7.8

A flaw was found in the Nosy driver in the Linux kernel

Published May 17, 2021

Modified 1 years ago

No fix available

Details

A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected

References

WEBhttp://www.openwall.com/lists/oss-security/2021/04/07/1 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1948045 WEBhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.html WEBhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.html WEBhttps://security.netapp.com/advisory/ntap-20210629-0002/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2021-3483

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

7.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

Memory Safety

CWE-416

Use After Free

Ecosystems

Timeline

PublishedMay 17, 2021

ModifiedAug 3, 2024