Improper Null Termination Affecting python3-perf package, versions <0:4.18.0-553.16.1.el8_10


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-7203359
  • published4 Jun 2024
  • disclosed30 May 2024

Introduced: 30 May 2024

CVE-2024-36896  (opens in a new tab)
CWE-170  (opens in a new tab)

How to fix?

Upgrade Centos:8 python3-perf to version 0:4.18.0-553.16.1.el8_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

USB: core: Fix access violation during port device removal

Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value.

It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems.

The same bug exists in the disable_show() routine, and it can be fixed the same way.

CVSS Scores

version 3.1