CVE-2021-32606

high

Description

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.)

References

Advisories
More

https://www.openwall.com/lists/oss-security/2021/05/11/16

https://security.netapp.com/advisory/ntap-20210625-0001/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/

http://www.openwall.com/lists/oss-security/2021/05/28/1

http://www.openwall.com/lists/oss-security/2021/05/14/1

http://www.openwall.com/lists/oss-security/2021/05/13/2

http://www.openwall.com/lists/oss-security/2021/05/12/1

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d

Details

Source: Mitre, NVD

Published: 2021-05-11

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H