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check_overflow() function can work incorrectly that lead to an overflow

This commit is contained in:
Pavel Šimovec 2023-06-30 11:54:14 +02:00 committed by psimovec
parent ef63c0211a
commit 26bbb5c622
2 changed files with 28 additions and 1 deletions
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23
sysstat-12.5.4-CVE-2023-33204.patch Normal file
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@ -0,0 +1,23 @@
From 954ff2e2673cef48f0ed44668c466eab041db387 Mon Sep 17 00:00:00 2001
From: Pavel Kopylov <pkopylov@cloudlinux.com>
Date: Wed, 17 May 2023 11:33:45 +0200
Subject: [PATCH] Fix an overflow which is still possible for some values.
diff --git a/common.c b/common.c
index 583a0ca..6d73b1b 100644
--- a/common.c
+++ b/common.c
@@ -1639,9 +1639,11 @@ int parse_values(char *strargv, unsigned char bitmap[], int max_val, const char
*/
void check_overflow(size_t val1, size_t val2, size_t val3)
{
- if ((unsigned long long) val1 *
- (unsigned long long) val2 *
- (unsigned long long) val3 > UINT_MAX) {
+if ((val1 != 0) && (val2 != 0) && (val3 != 0) &&
+ (((unsigned long long)UINT_MAX / (unsigned long long)val1 <
+ (unsigned long long)val2) ||
+ ((unsigned long long)UINT_MAX / ((unsigned long long)val1 *
+ (unsigned long long)val2) < (unsigned long long)val3))) {
#ifdef DEBUG
fprintf(stderr, "%s: Overflow detected (%llu). Aborting...\n",
__FUNCTION__,

6
sysstat.spec
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@ -1,7 +1,7 @@
Summary: Collection of performance monitoring tools for Linux
Name: sysstat
Version: 12.5.4
Release: 5%{?dist}
Release: 6%{?dist}
License: GPLv2+
URL: http://sebastien.godard.pagesperso-orange.fr/
Source: https://github.com/sysstat/sysstat/archive/v%{version}.tar.gz
@ -14,6 +14,7 @@ Source2: colorsysstat.sh
Patch1: sysstat-12.5.4-CVE-2022-39377.patch
# {cifsio,io,mp,pid}stat --dec and sar --dec report values from single alphabet other than defined (bz2080650)
Patch2: sysstat-12.5.4-bz2080650.patch
Patch3: sysstat-12.5.4-CVE-2023-33204.patch
BuildRequires: make
BuildRequires: gcc, gettext, lm_sensors-devel, pcp-libs-devel, systemd, git
@ -91,6 +92,9 @@ fi
%{_localstatedir}/log/sa
%changelog
* Fri Jun 30 2023 Pavel Šimovec <psimovec@redhat.com> - 12.5.4-6
- fix the arithmetic overflow in allocate_structures() that is still possible on some 32 bit systems (CVE-2023-33204)
* Tue Feb 21 2023 Lukáš Zaoral <lzaoral@redhat.com> - 12.5.4-5
- Fix --dec argument validation (rhbz#2080650)