From 98dee5ab5a862a506beb8a7bf60c0aaec3b08a0f Mon Sep 17 00:00:00 2001 From: Kamil Dudka Date: Fri, 18 Sep 2015 17:07:22 +0200 Subject: [PATCH 1/2] nss: check return values of NSS functions Upstream-commit: a9fd53887ba07cd8313a8b9706f2dc71d6b8ed1b Signed-off-by: Kamil Dudka --- lib/vtls/nss.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c index 91727c7..1fa1c64 100644 --- a/lib/vtls/nss.c +++ b/lib/vtls/nss.c @@ -1792,9 +1792,13 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex) /* Force handshake on next I/O */ - SSL_ResetHandshake(connssl->handle, /* asServer */ PR_FALSE); + if(SSL_ResetHandshake(connssl->handle, /* asServer */ PR_FALSE) + != SECSuccess) + goto error; - SSL_SetURL(connssl->handle, conn->host.name); + /* propagate hostname to the TLS layer */ + if(SSL_SetURL(connssl->handle, conn->host.name) != SECSuccess) + goto error; return CURLE_OK; -- 2.5.2 From d082ad368ecec7894d8e9e9a35336b2350c30ade Mon Sep 17 00:00:00 2001 From: Kamil Dudka Date: Fri, 18 Sep 2015 17:10:05 +0200 Subject: [PATCH 2/2] nss: prevent NSS from incorrectly re-using a session Without this workaround, NSS re-uses a session cache entry despite the server name does not match. This causes SNI host name to differ from the actual host name. Consequently, certain servers (e.g. github.com) respond by 400 to such requests. Bug: https://bugzilla.mozilla.org/1202264 Upstream-commit: 958d2ffb198166a062a0ff20d009c64972a2b374 Signed-off-by: Kamil Dudka --- lib/vtls/nss.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c index 1fa1c64..3d73ffe 100644 --- a/lib/vtls/nss.c +++ b/lib/vtls/nss.c @@ -1800,6 +1800,10 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex) if(SSL_SetURL(connssl->handle, conn->host.name) != SECSuccess) goto error; + /* prevent NSS from re-using the session for a different hostname */ + if(SSL_SetSockPeerID(connssl->handle, conn->host.name) != SECSuccess) + goto error; + return CURLE_OK; error: -- 2.5.2