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- Resolves rhbz#1581868 CVE-2018-5388 strongswan: buffer underflow in stroke_socket.c

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This commit is contained in:
Paul Wouters
2018-05-24 00:09:27 -04:00
parent ad2751324a
commit 9f0f5a9d4f
2 changed files with 21 additions and 1 deletions
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15
strongswan-5.6.2-CVE-2018-5388.patch Normal file
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@@ -0,0 +1,15 @@
diff -Naur strongswan-5.6.2-orig/src/libcharon/plugins/stroke/stroke_socket.c strongswan-5.6.2/src/libcharon/plugins/stroke/stroke_socket.c
--- strongswan-5.6.2-orig/src/libcharon/plugins/stroke/stroke_socket.c 2017-11-09 10:57:30.000000000 -0500
+++ strongswan-5.6.2/src/libcharon/plugins/stroke/stroke_socket.c 2018-05-24 00:00:32.382953618 -0400
@@ -628,6 +628,11 @@
return FALSE;
}
+ if (len < offsetof(stroke_msg_t, buffer))
+ {
+ DBG1(DBG_CFG, "invalid stroke message length %d", len);
+ return FALSE;
+ }
/* read message (we need an additional byte to terminate the buffer) */
msg = malloc(len + 1);
msg->length = len;

7
strongswan.spec
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@@ -3,13 +3,14 @@
Name: strongswan
Version: 5.6.2
Release: 5%{?dist}
Release: 6%{?dist}
Summary: An OpenSource IPsec-based VPN and TNC solution
License: GPLv2+
URL: http://www.strongswan.org/
Source0: http://download.strongswan.org/%{name}-%{version}%{?prerelease}.tar.bz2
Patch1: strongswan-5.6.0-uintptr_t.patch
Patch2: strongswan-5.6.2-1574939-VPN-DNS.patch
Patch3: strongswan-5.6.2-CVE-2018-5388.patch
# only needed for pre-release versions
#BuildRequires: autoconf automake
@@ -78,6 +79,7 @@ PT-TLS to support TNC over TLS.
%setup -q -n %{name}-%{version}%{?prerelease}
%patch1 -p1
%patch2 -p1
%patch3 -p1
%build
# only for snapshots
@@ -257,6 +259,9 @@ done
%{_libexecdir}/strongswan/charon-nm
%changelog
* Thu May 24 2018 Paul Wouters <pwouters@redhat.com> - 5.6.2-6
- Resolves rhbz#1581868 CVE-2018-5388 strongswan: buffer underflow in stroke_socket.c
* Thu May 24 2018 Paul Wouters <pwouters@redhat.com> - 5.6.2-5
- Resolves rhbz#1574939 IKEv2 VPN connections fail to use DNS servers provided by the server
- Resolves rhbz#1449875 Strongswan on epel built without the sql plugin but with the sqlite plugin