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- update to 2.2.14

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- relax permissions on /var/run/httpd (#495780)
- Requires(pre): httpd in mod_ssl subpackage (#543275)
- add partial security fix for CVE-2009-3555 (#533125)
This commit is contained in:
jorton 2009-12-03 14:23:28 +00:00
parent 3c757753d8
commit 9c0ce392a9
7 changed files with 308 additions and 23 deletions
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2
.cvsignore
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httpd-2.2.13.tar.gz
httpd-2.2.14.tar.gz

17
httpd-2.2.13.tar.gz.asc
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284
httpd-2.2.14-CVE-2009-3555.patch Normal file
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@ -0,0 +1,284 @@
--- httpd-2.2.14/modules/ssl/ssl_engine_init.c.cve3555
+++ httpd-2.2.14/modules/ssl/ssl_engine_init.c
@@ -501,10 +501,7 @@ static void ssl_init_ctx_callbacks(serve
SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
- if (s->loglevel >= APLOG_DEBUG) {
- /* this callback only logs if LogLevel >= info */
- SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState);
- }
+ SSL_CTX_set_info_callback(ctx, ssl_callback_Info);
}
static void ssl_init_ctx_verify(server_rec *s,
--- httpd-2.2.14/modules/ssl/ssl_engine_io.c.cve3555
+++ httpd-2.2.14/modules/ssl/ssl_engine_io.c
@@ -103,6 +103,7 @@ typedef struct {
ap_filter_t *pInputFilter;
ap_filter_t *pOutputFilter;
int nobuffer; /* non-zero to prevent buffering */
+ SSLConnRec *config;
} ssl_filter_ctx_t;
typedef struct {
@@ -193,7 +194,13 @@ static int bio_filter_out_read(BIO *bio,
static int bio_filter_out_write(BIO *bio, const char *in, int inl)
{
bio_filter_out_ctx_t *outctx = (bio_filter_out_ctx_t *)(bio->ptr);
-
+
+ /* Abort early if the client has initiated a renegotiation. */
+ if (outctx->filter_ctx->config->reneg_state == RENEG_ABORT) {
+ outctx->rc = APR_ECONNABORTED;
+ return -1;
+ }
+
/* when handshaking we'll have a small number of bytes.
* max size SSL will pass us here is about 16k.
* (16413 bytes to be exact)
@@ -466,6 +473,12 @@ static int bio_filter_in_read(BIO *bio,
if (!in)
return 0;
+ /* Abort early if the client has initiated a renegotiation. */
+ if (inctx->filter_ctx->config->reneg_state == RENEG_ABORT) {
+ inctx->rc = APR_ECONNABORTED;
+ return -1;
+ }
+
/* XXX: flush here only required for SSLv2;
* OpenSSL calls BIO_flush() at the appropriate times for
* the other protocols.
@@ -1724,6 +1737,8 @@ void ssl_io_filter_init(conn_rec *c, SSL
filter_ctx = apr_palloc(c->pool, sizeof(ssl_filter_ctx_t));
+ filter_ctx->config = myConnConfig(c);
+
filter_ctx->nobuffer = 0;
filter_ctx->pOutputFilter = ap_add_output_filter(ssl_io_filter,
filter_ctx, NULL, c);
--- httpd-2.2.14/modules/ssl/ssl_engine_kernel.c.cve3555
+++ httpd-2.2.14/modules/ssl/ssl_engine_kernel.c
@@ -729,6 +729,10 @@ int ssl_hook_Access(request_rec *r)
(unsigned char *)&id,
sizeof(id));
+ /* Toggle the renegotiation state to allow the new
+ * handshake to proceed. */
+ sslconn->reneg_state = RENEG_ALLOW;
+
SSL_renegotiate(ssl);
SSL_do_handshake(ssl);
@@ -750,6 +754,8 @@ int ssl_hook_Access(request_rec *r)
SSL_set_state(ssl, SSL_ST_ACCEPT);
SSL_do_handshake(ssl);
+ sslconn->reneg_state = RENEG_REJECT;
+
if (SSL_get_state(ssl) != SSL_ST_OK) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Re-negotiation handshake failed: "
@@ -1844,76 +1850,55 @@ void ssl_callback_DelSessionCacheEntry(S
return;
}
-/*
- * This callback function is executed while OpenSSL processes the
- * SSL handshake and does SSL record layer stuff. We use it to
- * trace OpenSSL's processing in out SSL logfile.
- */
-void ssl_callback_LogTracingState(MODSSL_INFO_CB_ARG_TYPE ssl, int where, int rc)
+/* Dump debugginfo trace to the log file. */
+static void log_tracing_state(MODSSL_INFO_CB_ARG_TYPE ssl, conn_rec *c,
+ server_rec *s, int where, int rc)
{
- conn_rec *c;
- server_rec *s;
- SSLSrvConfigRec *sc;
-
- /*
- * find corresponding server
- */
- if (!(c = (conn_rec *)SSL_get_app_data((SSL *)ssl))) {
- return;
- }
-
- s = mySrvFromConn(c);
- if (!(sc = mySrvConfig(s))) {
- return;
- }
-
/*
* create the various trace messages
*/
- if (s->loglevel >= APLOG_DEBUG) {
- if (where & SSL_CB_HANDSHAKE_START) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Handshake: start", SSL_LIBRARY_NAME);
- }
- else if (where & SSL_CB_HANDSHAKE_DONE) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Handshake: done", SSL_LIBRARY_NAME);
- }
- else if (where & SSL_CB_LOOP) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Loop: %s",
- SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
- }
- else if (where & SSL_CB_READ) {
+ if (where & SSL_CB_HANDSHAKE_START) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Handshake: start", SSL_LIBRARY_NAME);
+ }
+ else if (where & SSL_CB_HANDSHAKE_DONE) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Handshake: done", SSL_LIBRARY_NAME);
+ }
+ else if (where & SSL_CB_LOOP) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Loop: %s",
+ SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
+ }
+ else if (where & SSL_CB_READ) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Read: %s",
+ SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
+ }
+ else if (where & SSL_CB_WRITE) {
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Write: %s",
+ SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
+ }
+ else if (where & SSL_CB_ALERT) {
+ char *str = (where & SSL_CB_READ) ? "read" : "write";
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
+ "%s: Alert: %s:%s:%s",
+ SSL_LIBRARY_NAME, str,
+ SSL_alert_type_string_long(rc),
+ SSL_alert_desc_string_long(rc));
+ }
+ else if (where & SSL_CB_EXIT) {
+ if (rc == 0) {
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Read: %s",
+ "%s: Exit: failed in %s",
SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
}
- else if (where & SSL_CB_WRITE) {
+ else if (rc < 0) {
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Write: %s",
+ "%s: Exit: error in %s",
SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
}
- else if (where & SSL_CB_ALERT) {
- char *str = (where & SSL_CB_READ) ? "read" : "write";
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Alert: %s:%s:%s",
- SSL_LIBRARY_NAME, str,
- SSL_alert_type_string_long(rc),
- SSL_alert_desc_string_long(rc));
- }
- else if (where & SSL_CB_EXIT) {
- if (rc == 0) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Exit: failed in %s",
- SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
- }
- else if (rc < 0) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "%s: Exit: error in %s",
- SSL_LIBRARY_NAME, SSL_state_string_long(ssl));
- }
- }
}
/*
@@ -1933,6 +1918,52 @@ void ssl_callback_LogTracingState(MODSSL
}
}
+/*
+ * This callback function is executed while OpenSSL processes the SSL
+ * handshake and does SSL record layer stuff. It's used to trap
+ * client-initiated renegotiations, and for dumping everything to the
+ * log.
+ */
+void ssl_callback_Info(MODSSL_INFO_CB_ARG_TYPE ssl, int where, int rc)
+{
+ conn_rec *c;
+ server_rec *s;
+ SSLConnRec *scr;
+
+ /* Retrieve the conn_rec and the associated SSLConnRec. */
+ if ((c = (conn_rec *)SSL_get_app_data((SSL *)ssl)) == NULL) {
+ return;
+ }
+
+ if ((scr = myConnConfig(c)) == NULL) {
+ return;
+ }
+
+ /* If the reneg state is to reject renegotiations, check the SSL
+ * state machine and move to ABORT if a Client Hello is being
+ * read. */
+ if ((where & SSL_CB_ACCEPT_LOOP) && scr->reneg_state == RENEG_REJECT) {
+ int state = SSL_get_state(ssl);
+
+ if (state == SSL3_ST_SR_CLNT_HELLO_A
+ || state == SSL23_ST_SR_CLNT_HELLO_A) {
+ scr->reneg_state = RENEG_ABORT;
+ ap_log_cerror(APLOG_MARK, APLOG_ERR, 0, c,
+ "rejecting client initiated renegotiation");
+ }
+ }
+ /* If the first handshake is complete, change state to reject any
+ * subsequent client-initated renegotiation. */
+ else if ((where & SSL_CB_HANDSHAKE_DONE) && scr->reneg_state == RENEG_INIT) {
+ scr->reneg_state = RENEG_REJECT;
+ }
+
+ s = mySrvFromConn(c);
+ if (s && s->loglevel >= APLOG_DEBUG) {
+ log_tracing_state(ssl, c, s, where, rc);
+ }
+}
+
#ifndef OPENSSL_NO_TLSEXT
/*
* This callback function is executed when OpenSSL encounters an extended
--- httpd-2.2.14/modules/ssl/ssl_private.h.cve3555
+++ httpd-2.2.14/modules/ssl/ssl_private.h
@@ -356,6 +356,20 @@ typedef struct {
int is_proxy;
int disabled;
int non_ssl_request;
+
+ /* Track the handshake/renegotiation state for the connection so
+ * that all client-initiated renegotiations can be rejected, as a
+ * partial fix for CVE-2009-3555. */
+ enum {
+ RENEG_INIT = 0, /* Before initial handshake */
+ RENEG_REJECT, /* After initial handshake; any client-initiated
+ * renegotiation should be rejected */
+ RENEG_ALLOW, /* A server-initated renegotiation is taking
+ * place (as dictated by configuration) */
+ RENEG_ABORT /* Renegotiation initiated by client, abort the
+ * connection */
+ } reneg_state;
+
server_rec *server;
} SSLConnRec;
@@ -574,7 +588,7 @@ int ssl_callback_proxy_cert(SSL
int ssl_callback_NewSessionCacheEntry(SSL *, SSL_SESSION *);
SSL_SESSION *ssl_callback_GetSessionCacheEntry(SSL *, unsigned char *, int, int *);
void ssl_callback_DelSessionCacheEntry(SSL_CTX *, SSL_SESSION *);
-void ssl_callback_LogTracingState(MODSSL_INFO_CB_ARG_TYPE, int, int);
+void ssl_callback_Info(MODSSL_INFO_CB_ARG_TYPE, int, int);
#ifndef OPENSSL_NO_TLSEXT
int ssl_callback_ServerNameIndication(SSL *, int *, modssl_ctx_t *);
#endif

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httpd-2.2.14.tar.gz.asc Normal file
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17
httpd.spec
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@ -6,8 +6,8 @@
Summary: Apache HTTP Server
Name: httpd
Version: 2.2.13
Release: 4%{?dist}
Version: 2.2.14
Release: 1%{?dist}
URL: http://httpd.apache.org/
Source0: http://www.apache.org/dist/httpd/httpd-%{version}.tar.gz
Source1: index.html
@ -37,6 +37,8 @@ Patch25: httpd-2.2.11-selinux.patch
Patch26: httpd-2.2.9-suenable.patch
# Bug fixes
Patch54: httpd-2.2.0-authnoprov.patch
# Security fixes
Patch90: httpd-2.2.14-CVE-2009-3555.patch
License: ASL 2.0
Group: System Environment/Daemons
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
@ -101,6 +103,7 @@ Summary: SSL/TLS module for the Apache HTTP Server
Epoch: 1
BuildRequires: openssl-devel, distcache-devel
Requires(post): openssl >= 0.9.7f-4, /bin/cat
Requires(pre): httpd
Requires: httpd = 0:%{version}-%{release}, httpd-mmn = %{mmn}
Obsoletes: stronghold-mod_ssl
@ -126,6 +129,8 @@ Security (TLS) protocols.
%patch54 -p1 -b .authnoprov
%patch90 -p1 -b .cve3555
# Patch in vendor/release string
sed "s/@RELEASE@/%{vstring}/" < %{PATCH20} | patch -p1
@ -446,7 +451,7 @@ rm -rf $RPM_BUILD_ROOT
%config %{contentdir}/error/*.var
%config %{contentdir}/error/include/*.html
%attr(0700,root,root) %dir %{_localstatedir}/run/httpd
%attr(0710,root,apache) %dir %{_localstatedir}/run/httpd
%attr(0700,root,root) %dir %{_localstatedir}/log/httpd
%attr(0700,apache,apache) %dir %{_localstatedir}/lib/dav
%attr(0700,apache,apache) %dir %{_localstatedir}/cache/mod_proxy
@ -484,6 +489,12 @@ rm -rf $RPM_BUILD_ROOT
%{_libdir}/httpd/build/*.sh
%changelog
* Thu Dec 3 2009 Joe Orton <jorton@redhat.com> - 2.2.14-1
- update to 2.2.14
- relax permissions on /var/run/httpd (#495780)
- Requires(pre): httpd in mod_ssl subpackage (#543275)
- add partial security fix for CVE-2009-3555 (#533125)
* Tue Oct 27 2009 Tom "spot" Callaway <tcallawa@redhat.com> 2.2.13-4
- add additional explanatory text to test page to help prevent legal emails to Fedora

2
sources
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2803e35be6650f5b739e6e91faa824dd httpd-2.2.13.tar.gz
2c1e3c7ba00bcaa0163da7b3e66aaa1e httpd-2.2.14.tar.gz

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upstream
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httpd-2.2.13.tar.gz
httpd-2.2.14.tar.gz