Detections
Analytics

CVE-2020-36385

high

Description

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.

References

https://www.starwindsoftware.com/security/sw-20220802-0002/

https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6

https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2

https://security.netapp.com/advisory/ntap-20210720-0004/

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10

Details

Source: Mitre, NVD

Published: 2021-06-07

Updated: 2022-10-25

Risk Information

CVSS v2

Base Score: 6.8

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

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00041