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: 2024-05-22 09:48 UTC (History)
46 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.
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-2024:2950 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


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