From 18f251384d68b1d39fc885b4d3416f363e85fe27 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <kirill@neon.tech>
Date: Tue, 16 Aug 2022 11:10:38 +0300
Subject: [PATCH] Check for entire range during sasl validation (#2281)

---
 proxy/src/scram/messages.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxy/src/scram/messages.rs b/proxy/src/scram/messages.rs
index f6e6133adf..05855e74df 100644
--- a/proxy/src/scram/messages.rs
+++ b/proxy/src/scram/messages.rs
@@ -14,7 +14,7 @@ pub const SCRAM_RAW_NONCE_LEN: usize = 18;
 fn validate_sasl_extensions<'a>(parts: impl Iterator<Item = &'a str>) -> Option<()> {
     for mut chars in parts.map(|s| s.chars()) {
         let attr = chars.next()?;
-        if !('a'..'z').contains(&attr) && !('A'..'Z').contains(&attr) {
+        if !('a'..='z').contains(&attr) && !('A'..='Z').contains(&attr) {
             return None;
         }
         let eq = chars.next()?;