Bug 2039178 (CVE-2021-4204) - CVE-2021-4204 kernel: improper input validation may lead to privilege escalation
Summary: CVE-2021-4204 kernel: improper input validation may lead to privilege escalation
Keywords:
Status: NEW
Alias: CVE-2021-4204
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2039896 2055038 2055039 2055040 2055041
Blocks: 2039179 2039180
TreeView+ depends on / blocked
 
Reported: 2022-01-11 07:13 UTC by Marian Rehak
Modified: 2026-05-04 08:30 UTC (History)
46 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:0724 0 None None None 2024-02-07 16:28:17 UTC
Red Hat Product Errata RHSA-2024:10262 0 None None None 2024-11-26 00:47:48 UTC
Red Hat Product Errata RHSA-2024:2950 0 None None None 2024-05-22 09:12:23 UTC
Red Hat Product Errata RHSA-2024:3138 0 None None None 2024-05-22 09:48:53 UTC

Description Marian Rehak 2022-01-11 07:13:11 UTC 
An out of bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This could allow a local attacker with a special privilege to crash the system or leak kernel internal information.

Reference:
https://www.openwall.com/lists/oss-security/2022/01/11/4
Comment 1 Guilherme de Almeida Suckevicz 2022-01-12 16:59:17 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2039896]
Comment 19 errata-xmlrpc 2024-02-07 16:28:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724
Comment 21 errata-xmlrpc 2024-05-22 09:12:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:2950
Comment 22 errata-xmlrpc 2024-05-22 09:48:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3138 https://access.redhat.com/errata/RHSA-2024:3138
Comment 23 errata-xmlrpc 2024-11-26 00:47:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:10262 https://access.redhat.com/errata/RHSA-2024:10262
Note You need to log in before you can comment on or make changes to this bug.