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- fix CVE-2008-0891 - server name extension crash (#448492)

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- fix CVE-2008-1672 - server key exchange message omit crash (#448495)
This commit is contained in:
Tomáš Mráz 2008-05-28 15:52:21 +00:00
parent 6e489d9c90
commit 2c01b19843
3 changed files with 50 additions and 1 deletions
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17
openssl-0.9.8g-cve-2008-0891.patch Normal file
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@ -0,0 +1,17 @@
*) Fix double free in TLS server name extensions which could lead to a remote
crash found by Codenomicon TLS test suite (CVE-2008-0891) [Joe Orton]
Index: ssl/t1_lib.c
===================================================================
RCS file: /e/openssl/cvs/openssl/ssl/t1_lib.c,v
retrieving revision 1.13.2.8
diff -u -r1.13.2.8 ssl/t1_lib.c
--- ssl/t1_lib.c 18 Oct 2007 11:39:11 -0000
+++ ssl/t1_lib.c 18 Mar 2008 12:06:58 -0000
@@ -381,6 +381,7 @@
s->session->tlsext_hostname[len]='\0';
if (strlen(s->session->tlsext_hostname) != len) {
OPENSSL_free(s->session->tlsext_hostname);
+ s->session->tlsext_hostname = NULL;
*al = TLS1_AD_UNRECOGNIZED_NAME;
return 0;
}

24
openssl-0.9.8g-cve-2008-1671.patch Normal file
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@ -0,0 +1,24 @@
*) Fix flaw if 'Server Key exchange message' is omitted from a TLS
Handshake which could lead to a cilent crash as found using the
Codenomicon TLS test suite (CVE-2008-1672) [Steve Henson, Mark Cox]
Index: ssl/s3_clnt.c
===================================================================
RCS file: /e/openssl/cvs/openssl/ssl/s3_clnt.c,v
retrieving revision 1.88.2.12
diff -u -r1.88.2.12 ssl/s3_clnt.c
--- ssl/s3_clnt.c 3 Nov 2007 13:07:39 -0000
+++ ssl/s3_clnt.c 22 May 2008 09:19:30 -0000
@@ -2061,6 +2061,13 @@
{
DH *dh_srvr,*dh_clnt;
+ if (s->session->sess_cert == NULL)
+ {
+ ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
+ goto err;
+ }
+
if (s->session->sess_cert->peer_dh_tmp != NULL)
dh_srvr=s->session->sess_cert->peer_dh_tmp;
else

10
openssl.spec
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@ -22,7 +22,7 @@
Summary: The OpenSSL toolkit
Name: openssl
Version: 0.9.8g
Release: 8%{?dist}
Release: 9%{?dist}
# We remove certain patented algorithms from the openssl source tarball
# with the hobble-openssl script which is included below.
Source: openssl-%{version}-usa.tar.bz2
@ -59,6 +59,8 @@ Patch39: openssl-0.9.8g-ipv6-apps.patch
# Backported fixes including security fixes
Patch50: openssl-0.9.8g-speed-bug.patch
Patch51: openssl-0.9.8g-bn-mul-bug.patch
Patch52: openssl-0.9.8g-cve-2008-0891.patch
Patch53: openssl-0.9.8g-cve-2008-1671.patch
License: OpenSSL
Group: System Environment/Libraries
@ -124,6 +126,8 @@ from other formats to the formats used by the OpenSSL toolkit.
%patch39 -p1 -b .ipv6-apps
%patch50 -p1 -b .speed-bug
%patch51 -p1 -b .bn-mul-bug
%patch52 -p0 -b .srvname-crash
%patch53 -p0 -b .srv-kex-crash
# Modify the various perl scripts to reference perl in the right location.
perl util/perlpath.pl `dirname %{__perl}`
@ -378,6 +382,10 @@ rm -rf $RPM_BUILD_ROOT/%{_bindir}/openssl_fips_fingerprint
%postun -p /sbin/ldconfig
%changelog
* Wed May 28 2008 Tomas Mraz <tmraz@redhat.com> 0.9.8g-9
- fix CVE-2008-0891 - server name extension crash (#448492)
- fix CVE-2008-1672 - server key exchange message omit crash (#448495)
* Tue May 27 2008 Tomas Mraz <tmraz@redhat.com> 0.9.8g-8
- super-H arch support
- drop workaround for bug 199604 as it should be fixed in gcc-4.3