Use After Free in Linux Kernel
CVE-2021-3483
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
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Linux Kernel — versions 0, 4.5, 4.10
- Linux Kernel — versions 5.12
- NetApp Cloud Backup
- NetApp H300e
- NetApp H300e Firmware
- NetApp H300s
- NetApp H300s Firmware
- NetApp H410c
- NetApp H410c Firmware
- NetApp H410s
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2021/04/07/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/06/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/06/msg00019.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210629-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3483?
- CVE-2021-3483 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2021-05-17.
- How severe is CVE-2021-3483?
- High severity. CVSS v3 base score is 7.8 out of 10.