Buffer Overflow Affecting kernel-default-man package, versions <4.12.14-150.72.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-SLES150-KERNELDEFAULTMAN-2687492
  • published14 Apr 2022
  • disclosed12 May 2021

Introduced: 12 May 2021

CVE-2021-28972  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-default-man to version 4.12.14-150.72.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-man package and not the kernel-default-man package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

CVSS Scores

version 3.1