Bug 2396928 (CVE-2025-39849)

Summary:	CVE-2025-39849 kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
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	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2025-09-19 16:02:12 UTC

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

wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()

If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would
lead to memory corruption so add some bounds checking.

Comment 1 Jon Moroney 2025-09-19 17:03:50 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091904-CVE-2025-39849-c414@gregkh/T

Comment 4 errata-xmlrpc 2025-10-20 02:00:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:18281 https://access.redhat.com/errata/RHSA-2025:18281

Comment 5 errata-xmlrpc 2025-10-27 09:35:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:19103 https://access.redhat.com/errata/RHSA-2025:19103

Comment 6 errata-xmlrpc 2025-10-27 09:38:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:19102 https://access.redhat.com/errata/RHSA-2025:19102

Comment 7 errata-xmlrpc 2025-10-27 18:31:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:19106 https://access.redhat.com/errata/RHSA-2025:19106

Comment 8 errata-xmlrpc 2025-11-12 11:25:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:21112 https://access.redhat.com/errata/RHSA-2025:21112

Comment 9 errata-xmlrpc 2025-11-12 12:22:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:21118 https://access.redhat.com/errata/RHSA-2025:21118

Comment 11 errata-xmlrpc 2025-11-19 12:27:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:21760 https://access.redhat.com/errata/RHSA-2025:21760