Bug 2222791 (CVE-2022-2127)

Summary:	CVE-2022-2127 samba: out-of-bounds read in winbind AUTH_CRAP
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abokovoy, anoopcs, asn, dkarpele, nobody, pfilipen, rhs-smb, sbose, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	samba 4.16.11, samba 4.17.10, samba 4.18.5	Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.	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:
Bug Depends On:	2222894, 2222895, 2222896, 2224254
Bug Blocks:	2135524, 2216374

Description TEJ RATHI 2023-07-13 18:08:00 UTC

When winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in winbind and possibly crash it.

Comment 2 TEJ RATHI 2023-07-20 09:24:17 UTC

This CVE is public now - https://www.samba.org/samba/security/CVE-2022-2127.html

Comment 3 TEJ RATHI 2023-07-20 09:33:13 UTC

Created samba tracking bugs for this issue:

Affects: fedora-all [bug 2224254]

Comment 4 errata-xmlrpc 2023-11-07 08:22:22 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6667 https://access.redhat.com/errata/RHSA-2023:6667

Comment 5 errata-xmlrpc 2023-11-14 15:22:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:7139 https://access.redhat.com/errata/RHSA-2023:7139

Comment 7 errata-xmlrpc 2024-01-24 16:48:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0423 https://access.redhat.com/errata/RHSA-2024:0423

Comment 8 errata-xmlrpc 2024-01-30 13:24:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:0580 https://access.redhat.com/errata/RHSA-2024:0580