vulnerability

CentOS Linux: CVE-2023-34967: Moderate: samba security, bug fix, and enhancement update (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jul 20, 2023
Added
Nov 8, 2023
Modified
Jan 28, 2025

Description

A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves.

Solution(s)

centos-upgrade-ctdbcentos-upgrade-ctdb-debuginfocentos-upgrade-evolution-mapicentos-upgrade-evolution-mapi-debuginfocentos-upgrade-evolution-mapi-debugsourcecentos-upgrade-evolution-mapi-langpackscentos-upgrade-libnetapicentos-upgrade-libnetapi-debuginfocentos-upgrade-libsmbclientcentos-upgrade-libsmbclient-debuginfocentos-upgrade-libwbclientcentos-upgrade-libwbclient-debuginfocentos-upgrade-openchangecentos-upgrade-openchange-client-debuginfocentos-upgrade-openchange-debuginfocentos-upgrade-openchange-debugsourcecentos-upgrade-python3-sambacentos-upgrade-python3-samba-dccentos-upgrade-python3-samba-dc-debuginfocentos-upgrade-python3-samba-debuginfocentos-upgrade-python3-samba-testcentos-upgrade-sambacentos-upgrade-samba-clientcentos-upgrade-samba-client-debuginfocentos-upgrade-samba-client-libscentos-upgrade-samba-client-libs-debuginfocentos-upgrade-samba-commoncentos-upgrade-samba-common-libscentos-upgrade-samba-common-libs-debuginfocentos-upgrade-samba-common-toolscentos-upgrade-samba-common-tools-debuginfocentos-upgrade-samba-dc-libscentos-upgrade-samba-dc-libs-debuginfocentos-upgrade-samba-dcerpccentos-upgrade-samba-dcerpc-debuginfocentos-upgrade-samba-debuginfocentos-upgrade-samba-debugsourcecentos-upgrade-samba-krb5-printingcentos-upgrade-samba-krb5-printing-debuginfocentos-upgrade-samba-ldb-ldap-modulescentos-upgrade-samba-ldb-ldap-modules-debuginfocentos-upgrade-samba-libscentos-upgrade-samba-libs-debuginfocentos-upgrade-samba-pidlcentos-upgrade-samba-testcentos-upgrade-samba-test-debuginfocentos-upgrade-samba-test-libscentos-upgrade-samba-test-libs-debuginfocentos-upgrade-samba-toolscentos-upgrade-samba-usersharescentos-upgrade-samba-vfs-iouringcentos-upgrade-samba-vfs-iouring-debuginfocentos-upgrade-samba-winbindcentos-upgrade-samba-winbind-clientscentos-upgrade-samba-winbind-clients-debuginfocentos-upgrade-samba-winbind-debuginfocentos-upgrade-samba-winbind-krb5-locatorcentos-upgrade-samba-winbind-krb5-locator-debuginfocentos-upgrade-samba-winbind-modulescentos-upgrade-samba-winbind-modules-debuginfocentos-upgrade-samba-winexecentos-upgrade-samba-winexe-debuginfo
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