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fix use after free in parse_module_store

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luhuaxin 2021-06-17 20:36:30 +08:00
parent 5f84a6278f
commit 6ca976226a
2 changed files with 39 additions and 1 deletions
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34
libsemanage-Fix-use-after-free-in-parse_module_store.patch Normal file
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@ -0,0 +1,34 @@
From 58acebb85887cb25d729ac9cab51e63a8f5b7918 Mon Sep 17 00:00:00 2001
From: luhuaxin <1539327763@qq.com>
Date: Wed, 9 Jun 2021 21:32:32 +0800
Subject: [PATCH] libsemanage: Fix use after free in parse_module_store
The passed arg will be freed after this function call.
Signed-off-by: luhuaxin <1539327763@qq.com>
---
src/conf-parse.y | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/conf-parse.y b/src/conf-parse.y
index 9bf9364..eac9134 100644
--- a/src/conf-parse.y
+++ b/src/conf-parse.y
@@ -516,12 +516,12 @@ static int parse_module_store(char *arg)
char *s;
current_conf->store_type = SEMANAGE_CON_POLSERV_REMOTE;
if ((s = strchr(arg, ':')) == NULL) {
- current_conf->store_path = arg;
+ current_conf->store_path = strdup(arg);
current_conf->server_port = 4242;
} else {
char *endptr;
*s = '\0';
- current_conf->store_path = arg;
+ current_conf->store_path = strdup(arg);
current_conf->server_port = strtol(s + 1, &endptr, 10);
if (*(s + 1) == '\0' || *endptr != '\0') {
return -2;
--
1.8.3.1

6
libsemanage.spec
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@ -3,7 +3,7 @@
Name: libsemanage
Version: 3.1
Release: 4
Release: 5
License: LGPLv2+
Summary: SELinux binary policy manipulation library
URL: https://github.com/SELinuxProject/selinux/wiki
@ -11,6 +11,7 @@ Source0: https://github.com/SELinuxProject/selinux/releases/download/20200710/li
Source1: semanage.conf
Patch9000: fix-test-failure-with-secilc.patch
Patch9001: libsemanage-Fix-use-after-free-in-parse_module_store.patch
BuildRequires: gcc python3-devel bison flex bzip2-devel audit-libs-devel
BuildRequires: libselinux-devel >= %{libselinux_version} swig libsepol-devel >= %{libsepol_version}
@ -104,6 +105,9 @@ make test
%changelog
* Thu Jul 17 2021 luhuaxin <1539327763@qq.com> - 3.1-5
- fix use after free in semanage config parse
* Sat May 22 2021 Hugel<gengqihu1@huawei.com> - 3.1-4
- enabel make test