curl/0028-curl-7.76.1-CVE-2023-27536.patch
Kamil Dudka 40387c061f Resolves: CVE-2023-27535 - adapt the fix for RHEL 9 curl
... where USE_SSH is not defined.  The problem with the backport was
detected by OpenScanHub:

https://cov01.lab.eng.brq2.redhat.com/covscanhub/task/279249//log/added.html
2023-04-12 16:52:10 +02:00

55 lines
1.9 KiB
Diff

From 9d6dd7bc1dea42ae8e710aeae714e2a2c290de61 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 10 Mar 2023 09:22:43 +0100
Subject: [PATCH] url: only reuse connections with same GSS delegation
Reported-by: Harry Sintonen
Closes #10731
Upstream-commit: cb49e67303dbafbab1cebf4086e3ec15b7d56ee5
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
lib/url.c | 6 ++++++
lib/urldata.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/lib/url.c b/lib/url.c
index 3b11b7e..cbbc7f3 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -1325,6 +1325,11 @@ ConnectionExists(struct Curl_easy *data,
}
}
+ /* GSS delegation differences do not actually affect every connection
+ and auth method, but this check takes precaution before efficiency */
+ if(needle->gssapi_delegation != check->gssapi_delegation)
+ continue;
+
if(get_protocol_family(needle->handler) == PROTO_FAMILY_SSH) {
if(!ssh_config_matches(needle, check))
continue;
@@ -1785,6 +1790,7 @@ static struct connectdata *allocate_conn(struct Curl_easy *data)
conn->fclosesocket = data->set.fclosesocket;
conn->closesocket_client = data->set.closesocket_client;
conn->lastused = Curl_now(); /* used now */
+ conn->gssapi_delegation = data->set.gssapi_delegation;
return conn;
error:
diff --git a/lib/urldata.h b/lib/urldata.h
index ce90304..9e16f26 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -995,6 +995,7 @@ struct connectdata {
char *sasl_authzid; /* authorisation identity string, allocated */
char *oauth_bearer; /* OAUTH2 bearer, allocated */
unsigned char httpversion; /* the HTTP version*10 reported by the server */
+ unsigned char gssapi_delegation; /* inherited from set.gssapi_delegation */
struct curltime now; /* "current" time */
struct curltime created; /* creation time */
struct curltime lastused; /* when returned to the connection cache */
--
2.39.2