{"id":"UBUNTU-CVE-2022-2127","details":"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.","modified":"2026-04-22T15:20:03.399105Z","published":"2023-07-19T00:00:00Z","related":["USN-6238-1"],"upstream":["CVE-2022-2127"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2127"},{"type":"REPORT","url":"https://www.samba.org/samba/security/CVE-2022-2127.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6238-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-2127"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:3.6.18-1ubuntu3","2:4.0.10+dfsg-4ubuntu2","2:4.0.13+dfsg-1ubuntu1","2:4.1.3+dfsg-2ubuntu2","2:4.1.3+dfsg-2ubuntu3","2:4.1.3+dfsg-2ubuntu4","2:4.1.3+dfsg-2ubuntu5","2:4.1.6+dfsg-1ubuntu1","2:4.1.6+dfsg-1ubuntu2","2:4.1.6+dfsg-1ubuntu2.14.04.1","2:4.1.6+dfsg-1ubuntu2.14.04.2","2:4.1.6+dfsg-1ubuntu2.14.04.3","2:4.1.6+dfsg-1ubuntu2.14.04.4","2:4.1.6+dfsg-1ubuntu2.14.04.5","2:4.1.6+dfsg-1ubuntu2.14.04.7","2:4.1.6+dfsg-1ubuntu2.14.04.8","2:4.1.6+dfsg-1ubuntu2.14.04.9","2:4.1.6+dfsg-1ubuntu2.14.04.11","2:4.1.6+dfsg-1ubuntu2.14.04.12","2:4.1.6+dfsg-1ubuntu2.14.04.13","2:4.3.8+dfsg-0ubuntu0.14.04.2","2:4.3.9+dfsg-0ubuntu0.14.04.1","2:4.3.9+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.1","2:4.3.11+dfsg-0ubuntu0.14.04.2","2:4.3.11+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.4","2:4.3.11+dfsg-0ubuntu0.14.04.6","2:4.3.11+dfsg-0ubuntu0.14.04.7","2:4.3.11+dfsg-0ubuntu0.14.04.8","2:4.3.11+dfsg-0ubuntu0.14.04.9","2:4.3.11+dfsg-0ubuntu0.14.04.10","2:4.3.11+dfsg-0ubuntu0.14.04.11","2:4.3.11+dfsg-0ubuntu0.14.04.12","2:4.3.11+dfsg-0ubuntu0.14.04.13","2:4.3.11+dfsg-0ubuntu0.14.04.14","2:4.3.11+dfsg-0ubuntu0.14.04.16","2:4.3.11+dfsg-0ubuntu0.14.04.17","2:4.3.11+dfsg-0ubuntu0.14.04.19","2:4.3.11+dfsg-0ubuntu0.14.04.20","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm9","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm14","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libpam-smbpass"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libsmbsharemodes0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libwbclient0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"python-samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"registry-tools"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-common"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"smbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"winbind"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2127.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.16.04.34+esm4?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:4.1.17+dfsg-4ubuntu2","2:4.1.20+dfsg-1ubuntu1","2:4.1.20+dfsg-1ubuntu2","2:4.1.20+dfsg-1ubuntu3","2:4.1.20+dfsg-1ubuntu5","2:4.3.3+dfsg-1ubuntu1","2:4.3.3+dfsg-1ubuntu2","2:4.3.3+dfsg-1ubuntu3","2:4.3.6+dfsg-1ubuntu1","2:4.3.8+dfsg-0ubuntu1","2:4.3.9+dfsg-0ubuntu0.16.04.1","2:4.3.9+dfsg-0ubuntu0.16.04.2","2:4.3.9+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.1","2:4.3.11+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.5","2:4.3.11+dfsg-0ubuntu0.16.04.6","2:4.3.11+dfsg-0ubuntu0.16.04.7","2:4.3.11+dfsg-0ubu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