CVE-2021-32606

May 29, 2021

In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)

Summary:

In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)

Reference Links(if available):

  • https://www.openwall.com/lists/oss-security/2021/05/11/16
  • http://www.openwall.com/lists/oss-security/2021/05/12/1
  • http://www.openwall.com/lists/oss-security/2021/05/13/2
  • http://www.openwall.com/lists/oss-security/2021/05/14/1
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/

    • CVSS Score (if available)

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

    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)

  • Tags: , , , ,

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