CVE-2021-3483

moderate-risk
Published 2021-05-17

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

Do I need to act?

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0.17% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (16)

Affected Vendors

Debian Linux Netapp

References (10)

Mailing List http://www.openwall.com/lists/oss-security/2021/04/07/1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1948045
Mailing List https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Mailing List https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20210629-0002/
Mailing List http://www.openwall.com/lists/oss-security/2021/04/07/1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1948045
Mailing List https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Mailing List https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20210629-0002/
43
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 18/34 · Moderate