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- fix PKINIT null pointer deref

Browse Source 
CVE-2013-1415 (bnc#806715)

- package missing file (bnc#794784)

- revert the -p usage in %postun to fix SLE build

- fix PKINIT null pointer deref
  CVE-2013-1415 (bnc#806715)

OBS-URL: https://build.opensuse.org/package/show/network/krb5?expand=0&rev=87
This commit is contained in:
Michael Calmer 2013-03-04 10:24:33 +00:00 committed by Git OBS Bridge
parent 25e378d4c5
commit b06750d1e3
5 changed files with 79 additions and 5 deletions
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45
bug-806715-CVE-2013-1415-fix-PKINIT-null-pointer-deref.dif Normal file
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@ -0,0 +1,45 @@
commit c773d3c775e9b2d88bcdff5f8a8ba88d7ec4e8ed
Author: Xi Wang <xi.wang@gmail.com>
Date: Thu Feb 14 18:17:40 2013 -0500
PKINIT null pointer deref [CVE-2013-1415]
Don't dereference a null pointer when cleaning up.
The KDC plugin for PKINIT can dereference a null pointer when a
malformed packet causes processing to terminate early, leading to
a crash of the KDC process. An attacker would need to have a valid
PKINIT certificate or have observed a successful PKINIT authentication,
or an unauthenticated attacker could execute the attack if anonymous
PKINIT is enabled.
CVSSv2 vector: AV:N/AC:M/Au:N/C:N/I:N/A:C/E:P/RL:O/RC:C
This is a minimal commit for pullup; style fixes in a followup.
[kaduk@mit.edu: reformat and edit commit message]
ticket: 7570 (new)
target_version: 1.11.1
tags: pullup
Index: krb5-1.10.2/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
===================================================================
--- krb5-1.10.2.orig/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
+++ krb5-1.10.2/src/plugins/preauth/pkinit/pkinit_crypto_openssl.c
@@ -3242,7 +3242,7 @@ pkinit_check_kdc_pkid(krb5_context conte
pkiDebug("found kdcPkId in AS REQ\n");
is = d2i_PKCS7_ISSUER_AND_SERIAL(NULL, &p, (int)pkid_len);
if (is == NULL)
- goto cleanup;
+ return retval;
status = X509_NAME_cmp(X509_get_issuer_name(kdc_cert), is->issuer);
if (!status) {
@@ -3252,7 +3252,6 @@ pkinit_check_kdc_pkid(krb5_context conte
}
retval = 0;
-cleanup:
X509_NAME_free(is->issuer);
ASN1_INTEGER_free(is->serial);
free(is);

16
krb5-mini.changes
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@ -1,9 +1,25 @@
-------------------------------------------------------------------
Mon Mar 4 11:23:10 CET 2013 - mc@suse.de
- fix PKINIT null pointer deref
CVE-2013-1415 (bnc#806715)
-------------------------------------------------------------------
Fri Jan 25 15:29:37 CET 2013 - mc@suse.de
- package missing file (bnc#794784)
-------------------------------------------------------------------
Tue Jan 22 13:55:52 UTC 2013 - lchiquitto@suse.com
- krb5-1.10-spin-loop.patch: fix spin-loop bug in k5_sendto_kdc
(bnc#793336)
-------------------------------------------------------------------
Tue Oct 16 19:35:47 UTC 2012 - coolo@suse.com
- revert the -p usage in %postun to fix SLE build
-------------------------------------------------------------------
Tue Oct 16 12:05:00 UTC 2012 - coolo@suse.com

15
krb5-mini.spec
View File

@ -66,6 +66,7 @@ Patch19: krb5-1.9-ksu-path.patch
Patch20: krb5-1.10-gcc47.patch
Patch21: krb5-1.10-selinux-label.patch
Patch22: krb5-1.10-spin-loop.patch
Patch23: bug-806715-CVE-2013-1415-fix-PKINIT-null-pointer-deref.dif
BuildRoot: %{_tmppath}/%{name}-%{version}-build
PreReq: mktemp, grep, /bin/touch, coreutils
PreReq: %insserv_prereq %fillup_prereq
@ -161,6 +162,7 @@ Include Files for Development
%patch19 -p1
%patch20
%patch22 -p1
%patch23 -p1
# Rename the man pages so that they'll get generated correctly.
pushd src
cat %{SOURCE10} | while read manpage ; do
@ -275,16 +277,16 @@ install -m 644 %{_builddir}/%{srcRoot}/src/plugins/kdb/ldap/libkdb_ldap/kerberos
# cleanup
rm -f %{buildroot}/usr/share/man/man1/tmac.doc*
rm -f /usr/share/man/man1/tmac.doc*
rm -rf /usr/lib/mit/share
rm -rf %{buildroot}/usr/lib/mit/share
rm -rf %{buildroot}/usr/lib/mit/share/examples
rm -rf %{buildroot}/usr/lib/mit/share/locale
#####################################################
# krb5(-mini) pre/post/postun
#####################################################
%post -p /sbin/ldconfig
%postun -p /sbin/ldconfig
%postun
/sbin/ldconfig
%if ! %{build_mini}
@ -326,7 +328,8 @@ rm -rf %{buildroot}/usr/lib/mit/share
%post plugin-kdb-ldap -p /sbin/ldconfig
%postun plugin-kdb-ldap -p /sbin/ldconfig
%postun plugin-kdb-ldap
/sbin/ldconfig
%endif
@ -339,6 +342,7 @@ rm -rf %{buildroot}/usr/lib/mit/share
%dir /usr/lib/mit
%dir /usr/lib/mit/bin
%dir /usr/lib/mit/sbin
%dir /usr/lib/mit/share
%dir %{_datadir}/aclocal
%{_libdir}/libgssrpc.so
%{_libdir}/libk5crypto.so
@ -354,6 +358,7 @@ rm -rf %{buildroot}/usr/lib/mit/share
%{_includedir}/*
/usr/lib/mit/bin/krb5-config
/usr/lib/mit/sbin/krb5-send-pr
/usr/lib/mit/share/gnats
%{_mandir}/man1/krb5-send-pr.1*
%{_mandir}/man1/krb5-config.1*
%{_datadir}/aclocal/ac_check_krb5.m4

6
krb5.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Mon Mar 4 11:23:10 CET 2013 - mc@suse.de
- fix PKINIT null pointer deref
CVE-2013-1415 (bnc#806715)
-------------------------------------------------------------------
Fri Jan 25 15:29:37 CET 2013 - mc@suse.de

2
krb5.spec
View File

@ -66,6 +66,7 @@ Patch19: krb5-1.9-ksu-path.patch
Patch20: krb5-1.10-gcc47.patch
Patch21: krb5-1.10-selinux-label.patch
Patch22: krb5-1.10-spin-loop.patch
Patch23: bug-806715-CVE-2013-1415-fix-PKINIT-null-pointer-deref.dif
BuildRoot: %{_tmppath}/%{name}-%{version}-build
PreReq: mktemp, grep, /bin/touch, coreutils
PreReq: %insserv_prereq %fillup_prereq
@ -161,6 +162,7 @@ Include Files for Development
%patch19 -p1
%patch20
%patch22 -p1
%patch23 -p1
# Rename the man pages so that they'll get generated correctly.
pushd src
cat %{SOURCE10} | while read manpage ; do