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File _service:tar_scm_kernel_repo:backport-0026-CVE-2022-2031-CVE-2022-32744.patch of Package samba
From 1b38a28bcaebdae0128518605a422a194747a60f Mon Sep 17 00:00:00 2001 From: Joseph Sutton <josephsutton@catalyst.net.nz> Date: Fri, 27 May 2022 19:17:02 +1200 Subject: [PATCH 57/99] CVE-2022-2031 s4:kpasswd: Account for missing target principal This field is supposed to be optional. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15047 BUG: https://bugzilla.samba.org/show_bug.cgi?id=15049 BUG: https://bugzilla.samba.org/show_bug.cgi?id=15074 Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz> Reviewed-by: Andreas Schneider <asn@samba.org> --- source4/kdc/kpasswd-service-mit.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/source4/kdc/kpasswd-service-mit.c b/source4/kdc/kpasswd-service-mit.c index 2117c1c1696..b53c1a4618a 100644 --- a/source4/kdc/kpasswd-service-mit.c +++ b/source4/kdc/kpasswd-service-mit.c @@ -143,16 +143,18 @@ static krb5_error_code kpasswd_set_password(struct kdc_server *kdc, return KRB5_KPASSWD_HARDERROR; } - target_realm = smb_krb5_principal_get_realm( - mem_ctx, context, target_principal); - code = krb5_unparse_name_flags(context, - target_principal, - KRB5_PRINCIPAL_UNPARSE_NO_REALM, - &target_name); - if (code != 0) { - DBG_WARNING("Failed to parse principal\n"); - *error_string = "String conversion failed"; - return KRB5_KPASSWD_HARDERROR; + if (target_principal != NULL) { + target_realm = smb_krb5_principal_get_realm( + mem_ctx, context, target_principal); + code = krb5_unparse_name_flags(context, + target_principal, + KRB5_PRINCIPAL_UNPARSE_NO_REALM, + &target_name); + if (code != 0) { + DBG_WARNING("Failed to parse principal\n"); + *error_string = "String conversion failed"; + return KRB5_KPASSWD_HARDERROR; + } } if ((target_name != NULL && target_realm == NULL) || -- 2.25.1
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