CVE-2021-3483

June 23, 2021

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

Summary:

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

Reference Links(if available):

  • http://www.openwall.com/lists/oss-security/2021/04/07/1
  • https://bugzilla.redhat.com/show_bug.cgi?id=1948045
  • https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
  • https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

  • CVSS Score (if available)

    v2: / MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

    v3: / HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

    Links to Exploits(if available)

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