Fix fortification issues

Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
This commit is contained in:
Alexander Bokovoy 2023-01-30 12:00:33 +02:00
parent 4dd7781f5f
commit ca78a1bdbf
2 changed files with 43 additions and 1 deletions

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@ -0,0 +1,35 @@
From 4d87db0f11bcdd5c54fadb92351b603bd07f76f8 Mon Sep 17 00:00:00 2001
From: Alexander Bokovoy <abokovoy@redhat.com>
Date: Mon, 30 Jan 2023 11:44:49 +0200
Subject: [PATCH] Pass right remaining buffer size in hsm_hex_unparse to handle
string fortification
When string fortification is in use (-DFORTIFY_SOURCE=3), GCC and glibc
will cut few bytes off the string buffer for prevention of buffer
overruns. As a result, hsm_hex_unparse() will call into snprintf() with
a buffer length bigger than the size of the buffer as seen by the
GCC/glibc pair.
See also: https://pagure.io/freeipa/issue/9312
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
---
libhsm/src/lib/libhsm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libhsm/src/lib/libhsm.c b/libhsm/src/lib/libhsm.c
index 88dc79e31..8f1e0c3bc 100644
--- a/libhsm/src/lib/libhsm.c
+++ b/libhsm/src/lib/libhsm.c
@@ -1382,7 +1382,7 @@ hsm_hex_unparse(char *dst, const unsigned char *src, size_t len)
size_t i;
for (i = 0; i < len; i++) {
- snprintf(dst + (2*i), dst_len, "%02x", src[i]);
+ snprintf(dst + (2*i), dst_len - (2*i), "%02x", src[i]);
}
dst[len*2] = '\0';
}
--
2.39.0

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@ -4,7 +4,7 @@
Summary: DNSSEC key and zone management software
Name: opendnssec
Version: 2.1.10
Release: 4%{?dist}
Release: 5%{?dist}
License: BSD
Url: http://www.opendnssec.org/
Source0: http://www.opendnssec.org/files/source/%{?prever:testing/}%{name}-%{version}%{?prever}.tar.gz
@ -16,6 +16,7 @@ Source5: tmpfiles-opendnssec.conf
Source6: opendnssec.cron
Source7: opendnssec-2.1.sqlite_convert.sql
Source8: opendnssec-2.1.sqlite_rpmversion.sql
Patch1: 0001-Pass-right-remaining-buffer-size-in-hsm_hex_unparse-.patch
Requires: opencryptoki, softhsm >= 2.5.0 , systemd-units
Requires: libxml2, libxslt sqlite
@ -45,6 +46,8 @@ name server. It requires a PKCS#11 crypto module library, such as softhsm
%prep
%setup -q -n %{name}-%{version}%{?prever}
%patch1 -p1
# bump default policy ZSK keysize to 2048
sed -i "s/1024/2048/" conf/kasp.xml.in
@ -178,6 +181,10 @@ ods-enforcer update all >/dev/null 2>/dev/null ||:
%systemd_postun_with_restart ods-signerd.service
%changelog
* Mon Jan 30 2023 Alexander Bokovoy <abokovoy@redhat.com> - 2.1.10-5
- Fix fortification issues leading to crash in FreeIPA setup
Upstream PR: https://github.com/opendnssec/opendnssec/pull/842
* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.10-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild