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-rw-r--r--src/responder/pam/pamsrv_cmd.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/responder/pam/pamsrv_cmd.c b/src/responder/pam/pamsrv_cmd.c
index 1d2a2a58..18ba3fdf 100644
--- a/src/responder/pam/pamsrv_cmd.c
+++ b/src/responder/pam/pamsrv_cmd.c
@@ -70,6 +70,11 @@ static int extract_string(char **var, size_t size, uint8_t *body, size_t blen,
if (str[size-1]!='\0') return EINVAL;
+ /* If the string isn't valid UTF-8, fail */
+ if (!sss_utf8_check(str, size)) {
+ return EINVAL;
+ }
+
*c += size;
*var = (char *) str;