Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-28972 First vendor Publication 2021-03-22
Vendor Cve Last vendor Modification 2021-04-30

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.7
Base Score 6.7 Environmental Score 6.7
impact SubScore 5.9 Temporal Score 6.7
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28972

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3
Os 3358

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210430-0003/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...

Alert History

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Date Informations
2021-05-04 14:10:07
  • Multiple Updates
2021-05-04 13:25:43
  • Multiple Updates
2021-04-30 13:22:50
  • Multiple Updates
2021-04-22 00:23:04
  • Multiple Updates
2021-04-20 17:22:54
  • Multiple Updates
2021-03-30 21:23:26
  • Multiple Updates
2021-03-29 09:22:59
  • Multiple Updates
2021-03-27 00:23:05
  • Multiple Updates
2021-03-26 21:23:24
  • Multiple Updates
2021-03-26 12:38:44
  • First insertion