CVE-2020-27835

Published: Jan 7, 2021Modified: Nov 21, 2024

4.4

Vector

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

Exploitability: 0.8 / Impact: 3.6

Source: NVD

Description

A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.

Affected (6)

Products: Linux: Infiniband Hfi1 Driver

Linux

1 product

Infiniband Hfi1 Driver

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Linux Infiniband Hfi1 Driver	Up to 5.9
Linux Infiniband Hfi1 Driver	Version 5.10 rc1
Linux Infiniband Hfi1 Driver	Version 5.10 rc2
Linux Infiniband Hfi1 Driver	Version 5.10 rc3
Linux Infiniband Hfi1 Driver	Version 5.10 rc4
Linux Infiniband Hfi1 Driver	Version 5.10 rc5

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://bugzilla.redhat.com/show_bug.cgi?id=1901709

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1901709

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

Timeline

No history available yet.