There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-libs": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "registry-tools": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-common-bin": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libwbclient0-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dsdb-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libpam-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libnss-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-vfs-modules": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-common-bin-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-testsuite": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "smbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libsmbclient": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libsmbclient-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libwbclient0": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libparse-pidl-perl-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dsdb-modules": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "registry-tools-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-vfs-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "python-samba": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "ctdb": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libsmbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libnss-winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libsmbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-libs-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dbg": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-testsuite-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-common": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libpam-winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "smbclient": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libwbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "samba-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "libparse-pidl-perl": "2:4.3.11+dfsg-0ubuntu0.16.04.24", "ctdb-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.24" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-libs": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "registry-tools": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-common-bin": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libwbclient0-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-dsdb-modules-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libpam-winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libnss-winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-vfs-modules": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "python-samba-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-common-bin-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-testsuite": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "smbclient-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libsmbclient": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libwbclient0": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libsmbclient-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "python-samba": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-dsdb-modules": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "registry-tools-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-vfs-modules-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "ctdb": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libnss-winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libsmbclient-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-libs-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-testsuite-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-common": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libpam-winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "smbclient": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "samba-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "libparse-pidl-perl": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14", "ctdb-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14" } ] }