Samba: out-of-bounds read in winbind auth_crap

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Summary

CVECVE-2022-2127
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-20 15:15:11 UTC
Updated2026-11-05 09:17:04 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-125 | CWE-125 Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Samba Samba All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.6-1.el8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.6-1.el8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support unaffected 0:4.15.5-15.el8_6 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 0:4.17.5-5.el8_8 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:4.18.6-100.el9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:4.18.6-100.el9 * rpm Not specified
CNA Red Hat Red Hat Virtualization 4 For Red Hat Enterprise Linux 8 unaffected 0:4.15.5-15.el8_6 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Storage 3 Not specified Not specified

References

ReferenceSourceLinkTags
cve-details af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
July 2023 Samba Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
[SECURITY] Fedora 37 Update: samba-4.17.10-0.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
2222791 – (CVE-2022-2127) CVE-2022-2127 samba: out-of-bounds read in winbind AUTH_CRAP af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
[SECURITY] Fedora 38 Update: samba-4.18.5-0.fc38 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Debian -- Security Information -- DSA-5477-1 samba af854a3a-2127-422b-91ae-364da2661108 www.debian.org
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
lists.debian.org/debian-lts-announce/2024/04/msg00015.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
Samba - Security Announcement Archive af854a3a-2127-422b-91ae-364da2661108 www.samba.org Mitigation, Vendor Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2023-07-13T00:00:00.000ZReported to Red Hat.
CNA2023-07-19T00:00:00.000ZMade public.

Legacy QID Mappings

  • 161079 Oracle Enterprise Linux Security Update for samba (ELSA-2023-6667)
  • 161138 Oracle Enterprise Linux Security Update for samba (ELSA-2023-7139)
  • 199593 Ubuntu Security Notification for Samba Vulnerabilities (USN-6238-1)
  • 242329 Red Hat Update for samba security (RHSA-2023:6667)
  • 242428 Red Hat Update for samba security (RHSA-2023:7139)
  • 242787 Red Hat Update for samba (RHSA-2024:0580)
  • 242852 Red Hat Update for samba (RHSA-2024:0423)
  • 284336 Fedora Security Update for samba (FEDORA-2023-76c06c8576)
  • 284369 Fedora Security Update for samba (FEDORA-2023-bcd91bfcd3)
  • 355878 Amazon Linux Security Advisory for samba : ALAS2023-2023-316
  • 356750 Amazon Linux Security Advisory for samba : ALAS2-2023-2367
  • 356781 Amazon Linux Security Advisory for samba : ALAS-2023-1896
  • 379622 Alibaba Cloud Linux Security Update for evolution-mapi (ALINUX3-SA-2024:0037)
  • 6000221 Debian Security Update for samba (DSA 5477-1)
  • 6000543 Debian Security Update for samba (DSA 5647-1)
  • 673521 EulerOS Security Update for samba (EulerOS-SA-2023-2907)
  • 673550 EulerOS Security Update for samba (EulerOS-SA-2023-3157)
  • 673600 EulerOS Security Update for samba (EulerOS-SA-2023-2869)
  • 673784 EulerOS Security Update for samba (EulerOS-SA-2023-3229)
  • 673831 EulerOS Security Update for samba (EulerOS-SA-2023-2852)
  • 673954 EulerOS Security Update for samba (EulerOS-SA-2023-2888)
  • 674025 EulerOS Security Update for samba (EulerOS-SA-2023-3194)
  • 691226 Free Berkeley Software Distribution (FreeBSD) Security Update for samba (441e1e1a-27a5-11ee-a156-080027f5fec9)
  • 710873 Gentoo Linux Samba Multiple Vulnerabilities (GLSA 202402-28)
  • 754194 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:2888-1)
  • 754195 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:2887-1)
  • 754222 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:3017-1)
  • 754225 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:3060-1)
  • 754284 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:3358-1)
  • 755893 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:2929-1)
  • 755894 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:2930-1)
  • 941384 AlmaLinux Security Update for samba (ALSA-2023:6667)
  • 941423 AlmaLinux Security Update for samba (ALSA-2023:7139)

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