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sysstat
sysstat-CVE-2023-33204.patch
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File sysstat-CVE-2023-33204.patch of Package sysstat
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. --- common.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) Index: sysstat-12.6.2/common.c =================================================================== --- sysstat-12.6.2.orig/common.c +++ sysstat-12.6.2/common.c @@ -447,15 +447,17 @@ int check_dir(char *dirname) void check_overflow(unsigned int val1, unsigned int val2, unsigned int 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__, (unsigned long long) val1 * (unsigned long long) val2 * - (unsigned long long) val3); + fprintf(stderr, "%s: Overflow detected (%u,%u,%u). Aborting...\n", + __FUNCTION__, val1, val2, val3); #endif - exit(4); - } + exit(4); + } } #ifndef SOURCE_SADC
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