Fix CVE 2019 19906

cyrus-sasl-cve-2019-19906.patch

@@ -0,0 +1,25 @@
+From dcc9f51cbd4ed622cfb0f9b1c141eb2ffe3b12f1 Mon Sep 17 00:00:00 2001
+From: Quanah Gibson-Mount <quanah@symas.com>
+Date: Tue, 18 Feb 2020 19:05:12 +0000
+Subject: [PATCH] Fix #587
+
+Off by one error in common.c, CVE-2019-19906.
+
+Thanks to Stephan Zeisberg for reporting
+---
+ lib/common.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/common.c b/lib/common.c
+index bc3bf1df..9969d6aa 100644
+--- a/lib/common.c
++++ b/lib/common.c
+@@ -190,7 +190,7 @@ int _sasl_add_string(char **out, size_t *alloclen,
+ 
+   if (add==NULL) add = "(null)";
+ 
+-  addlen=strlen(add); /* only compute once */
++  addlen=strlen(add)+1; /* only compute once */
+   if (_buf_alloc(out, alloclen, (*outlen)+addlen)!=SASL_OK)
+     return SASL_NOMEM;
+ 

cyrus-sasl.spec

@@ -8,7 +8,7 @@
 Summary: The Cyrus SASL library
 Name: cyrus-sasl
 Version: 2.1.27
-Release: 3%{?dist}
+Release: 4%{?dist}
 License: BSD with advertising
 URL: https://www.cyrusimap.org/sasl/
 
@@ -33,6 +33,8 @@ Patch24: cyrus-sasl-2.1.21-sizes.patch
 Patch49: cyrus-sasl-2.1.26-md5global.patch
 Patch60: cyrus-sasl-pr559-RC4-openssl.patch
 
+Patch100: cyrus-sasl-cve-2019-19906.patch
+
 BuildRequires: autoconf, automake, libtool, gdbm-devel, groff
 BuildRequires: krb5-devel >= 1.2.2, openssl-devel, pam-devel, pkgconfig
 BuildRequires: mariadb-connector-c-devel, libpq-devel, zlib-devel
@@ -151,6 +153,7 @@ the GS2 authentication scheme.
 %patch24 -p1 -b .sizes
 %patch49 -p1 -b .md5global.h
 %patch60 -p1 -b .openssl_rc4
+%patch100 -p1 -b .cve_2019_19906
 
 %build
 # reconfigure
@@ -357,6 +360,9 @@ getent passwd %{username} >/dev/null || useradd -r -g %{username} -d %{homedir}
 %{_sbindir}/sasl2-shared-mechlist
 
 %changelog
+* Thu Mar 19 2020 Simo Sorce - 2.1.27-4
+- Fix CVE 2019 19906
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.27-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild