Unrated severityNVD Advisory· Published Jul 20, 2023· Updated Nov 20, 2025
Samba: out-of-bounds read in winbind auth_crap
CVE-2022-2127
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
82cpe:/a:redhat:enterprise_linux:8::crb+ 3 more
- cpe:/a:redhat:enterprise_linux:8::crbrange: 0:4.18.6-1.el8
- cpe:/a:redhat:enterprise_linux:9::resilientstoragerange: 0:4.18.6-100.el9
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- Red Hat/Red Hat Enterprise Linux 8.8 Extended Update Supportv5cpe:/a:redhat:rhel_eus:8.8::crbRange: 0:4.17.5-5.el8_8
- cpe:/a:redhat:storage:3
- Red Hat/Red Hat Virtualization 4 for Red Hat Enterprise Linux 8v5cpe:/o:redhat:rhev_hypervisor:4.4::el8Range: 0:4.15.5-15.el8_6
- osv-coords74 versionspkg:rpm/almalinux/ctdbpkg:rpm/almalinux/libnetapipkg:rpm/almalinux/libnetapi-develpkg:rpm/almalinux/libsmbclientpkg:rpm/almalinux/libsmbclient-develpkg:rpm/almalinux/libwbclientpkg:rpm/almalinux/libwbclient-develpkg:rpm/almalinux/python3-sambapkg:rpm/almalinux/python3-samba-dcpkg:rpm/almalinux/python3-samba-develpkg:rpm/almalinux/python3-samba-testpkg:rpm/almalinux/sambapkg:rpm/almalinux/samba-clientpkg:rpm/almalinux/samba-client-libspkg:rpm/almalinux/samba-commonpkg:rpm/almalinux/samba-common-libspkg:rpm/almalinux/samba-common-toolspkg:rpm/almalinux/samba-dcerpcpkg:rpm/almalinux/samba-dc-libspkg:rpm/almalinux/samba-develpkg:rpm/almalinux/samba-krb5-printingpkg:rpm/almalinux/samba-ldb-ldap-modulespkg:rpm/almalinux/samba-libspkg:rpm/almalinux/samba-pidlpkg:rpm/almalinux/samba-testpkg:rpm/almalinux/samba-test-libspkg:rpm/almalinux/samba-toolspkg:rpm/almalinux/samba-usersharespkg:rpm/almalinux/samba-vfs-iouringpkg:rpm/almalinux/samba-winbindpkg:rpm/almalinux/samba-winbind-clientspkg:rpm/almalinux/samba-winbind-krb5-locatorpkg:rpm/almalinux/samba-winbind-modulespkg:rpm/almalinux/samba-winexepkg:rpm/opensuse/samba&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/samba&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/samba&distro=openSUSE%20Leap%20Micro%205.3pkg:rpm/opensuse/samba&distro=openSUSE%20Leap%20Micro%205.4pkg:rpm/opensuse/samba&distro=openSUSE%20Tumbleweedpkg:rpm/suse/samba&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/samba&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP4pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP3pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-ESPOSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/samba&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/samba&distro=SUSE%20Manager%20Server%204.2pkg:rpm/suse/samba&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/samba&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 4.18.6-100.el9+ 73 more
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
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- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
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- (no CPE)range: < 4.18.6-100.el9
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- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
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- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.18.6-100.el9
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.17.9+git.367.dae41ffdd1f-150500.3.5.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.18.5+git.313.c8e274c7852-1.1
- (no CPE)range: < 4.11.14+git.396.91f4f677472-150200.4.52.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
- (no CPE)range: < 4.15.13+git.621.c8ae836ff82-3.85.1
- (no CPE)range: < 4.9.5+git.564.996810ca1e3-150100.3.82.3
- (no CPE)range: < 4.11.14+git.396.91f4f677472-150200.4.52.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.17.9+git.367.dae41ffdd1f-150500.3.5.1
- (no CPE)range: < 4.9.5+git.564.996810ca1e3-150100.3.82.3
- (no CPE)range: < 4.11.14+git.396.91f4f677472-150200.4.52.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150400.3.28.1
- (no CPE)range: < 4.17.9+git.367.dae41ffdd1f-150500.3.5.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
- (no CPE)range: < 4.15.13+git.621.c8ae836ff82-3.85.1
- (no CPE)range: < 4.9.5+git.564.996810ca1e3-150100.3.82.3
- (no CPE)range: < 4.11.14+git.396.91f4f677472-150200.4.52.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
- (no CPE)range: < 4.15.13+git.621.c8ae836ff82-3.85.1
- (no CPE)range: < 4.9.5+git.564.996810ca1e3-150100.3.82.3
- (no CPE)range: < 4.11.14+git.396.91f4f677472-150200.4.52.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.621.c8ae836ff82-3.85.1
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.15.13+git.663.9c654e06cdb-150300.3.57.5
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
- (no CPE)range: < 4.6.16+git.393.97432483687-3.81.1
Patches
Vulnerability mechanics
References
7- access.redhat.com/errata/RHSA-2023:6667mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2023:7139mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2024:0423mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2024:0580mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/security/cve/CVE-2022-2127mitrevdb-entryx_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgimitreissue-trackingx_refsource_REDHAT
- www.samba.org/samba/security/CVE-2022-2127.htmlmitre
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