Bug 2297476 (CVE-2024-39504)

Summary:	CVE-2024-39504 kernel: netfilter: nft_inner: validate mandatory meta and payload
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.6.35, kernel 6.9.6, kernel 6.10-rc4	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's Netfilter subsystem in the nft_inner component, where the issue occurs when mandatory netlink attributes for payload and meta expressions are not validated in embedded inner expressions, which can lead to a NULL pointer dereference from user space which allow attackers to exploit the system, potentially causing crashes.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2024-07-12 13:23:02 UTC

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

netfilter: nft_inner: validate mandatory meta and payload

Check for mandatory netlink attributes in payload and meta expression
when used embedded from the inner expression, otherwise NULL pointer
dereference is possible from userspace.

Comment 4 errata-xmlrpc 2024-10-30 01:26:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:8617 https://access.redhat.com/errata/RHSA-2024:8617