From: Yi Zhao Date: Wed, 14 May 2025 07:35:30 +0000 (+0800) Subject: iputils: Security fix for CVE-2025-47268 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b0dd564249754ab8ec20ce69b137466e051501e;p=thirdparty%2Fopenembedded%2Fopenembedded-core-contrib.git iputils: Security fix for CVE-2025-47268 CVE-2025-47268 ping in iputils through 20240905 allows a denial of service (application error or incorrect data collection) via a crafted ICMP Echo Reply packet, because of a signed 64-bit integer overflow in timestamp multiplication. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-47268 Patch from: https://github.com/iputils/iputils/commit/070cfacd7348386173231fb16fad4983d4e6ae40 Signed-off-by: Yi Zhao Signed-off-by: Steve Sakoman --- diff --git a/meta/recipes-extended/iputils/iputils/CVE-2025-47268.patch b/meta/recipes-extended/iputils/iputils/CVE-2025-47268.patch new file mode 100644 index 00000000000..dd31b79031f --- /dev/null +++ b/meta/recipes-extended/iputils/iputils/CVE-2025-47268.patch @@ -0,0 +1,143 @@ +From 070cfacd7348386173231fb16fad4983d4e6ae40 Mon Sep 17 00:00:00 2001 +From: Petr Vorel +Date: Mon, 5 May 2025 23:55:57 +0200 +Subject: [PATCH] ping: Fix signed 64-bit integer overflow in RTT calculation + +Crafted ICMP Echo Reply packet can cause signed integer overflow in + +1) triptime calculation: +triptime = tv->tv_sec * 1000000 + tv->tv_usec; + +2) tsum2 increment which uses triptime +rts->tsum2 += (double)((long long)triptime * (long long)triptime); + +3) final tmvar: +tmvar = (rts->tsum2 / total) - (tmavg * tmavg) + + $ export CFLAGS="-O1 -g -fsanitize=address,undefined -fno-omit-frame-pointer" + $ export LDFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer" + $ meson setup .. -Db_sanitize=address,undefined + $ ninja + $ ./ping/ping -c2 127.0.0.1 + + PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data. + 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.061 ms + ../ping/ping_common.c:757:25: runtime error: signed integer overflow: -2513732689199106 * 1000000 cannot be represented in type 'long int' + ../ping/ping_common.c:757:12: runtime error: signed integer overflow: -4975495174606980224 + -6510615555425289427 cannot be represented in type 'long int' + ../ping/ping_common.c:769:47: runtime error: signed integer overflow: 6960633343677281965 * 6960633343677281965 cannot be represented in type 'long int' + 24 bytes from 127.0.0.1: icmp_seq=1 ttl=64 (truncated) + ./ping/ping: Warning: time of day goes back (-7256972569576721377us), taking countermeasures + ./ping/ping: Warning: time of day goes back (-7256972569576721232us), taking countermeasures + 24 bytes from 127.0.0.1: icmp_seq=1 ttl=64 (truncated) + ../ping/ping_common.c:265:16: runtime error: signed integer overflow: 6960633343677281965 * 2 cannot be represented in type 'long int' + 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.565 ms + + --- 127.0.0.1 ping statistics --- + 2 packets transmitted, 2 received, +2 duplicates, 0% packet loss, time 1002ms + ../ping/ping_common.c:940:42: runtime error: signed integer overflow: 1740158335919320832 * 1740158335919320832 cannot be represented in type 'long int' + rtt min/avg/max/mdev = 0.000/1740158335919320.832/6960633343677281.965/-1623514645242292.-224 ms + +To fix the overflow check allowed ranges of struct timeval members: +* tv_sec <0, LONG_MAX/1000000> +* tv_usec <0, 999999> + +Fix includes 2 new error messages (needs translation). +Also existing message "time of day goes back ..." needed to be modified +as it now prints tv->tv_sec which is a second (needs translation update). + +After fix: + + $ ./ping/ping -c2 127.0.0.1 + 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.057 ms + ./ping/ping: Warning: invalid tv_usec -6510615555424928611 us + ./ping/ping: Warning: time of day goes back (-3985394643238914 s), taking countermeasures + ./ping/ping: Warning: invalid tv_usec -6510615555424928461 us + ./ping/ping: Warning: time of day goes back (-3985394643238914 s), taking countermeasures + 24 bytes from 127.0.0.1: icmp_seq=1 ttl=64 (truncated) + ./ping/ping: Warning: invalid tv_usec -6510615555425884541 us + ./ping/ping: Warning: time of day goes back (-4243165695442945 s), taking countermeasures + 24 bytes from 127.0.0.1: icmp_seq=1 ttl=64 (truncated) + 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.111 ms + + --- 127.0.0.1 ping statistics --- + 2 packets transmitted, 2 received, +2 duplicates, 0% packet loss, time 101ms + rtt min/avg/max/mdev = 0.000/0.042/0.111/0.046 ms + +Fixes: https://github.com/iputils/iputils/issues/584 +Fixes: CVE-2025-472 +Link: https://github.com/Zephkek/ping-rtt-overflow/ +Co-developed-by: Cyril Hrubis +Reported-by: Mohamed Maatallah +Reviewed-by: Mohamed Maatallah +Reviewed-by: Cyril Hrubis +Reviewed-by: Noah Meyerhans +Signed-off-by: Petr Vorel + +CVE: CVE-2025-47268 + +Upstream-Status: Backport +[https://github.com/iputils/iputils/commit/070cfacd7348386173231fb16fad4983d4e6ae40] + +Signed-off-by: Yi Zhao +--- + iputils_common.h | 3 +++ + ping/ping_common.c | 22 +++++++++++++++++++--- + 2 files changed, 22 insertions(+), 3 deletions(-) + +diff --git a/iputils_common.h b/iputils_common.h +index 49e790d..829a749 100644 +--- a/iputils_common.h ++++ b/iputils_common.h +@@ -10,6 +10,9 @@ + !!__builtin_types_compatible_p(__typeof__(arr), \ + __typeof__(&arr[0]))])) * 0) + ++/* 1000001 = 1000000 tv_sec + 1 tv_usec */ ++#define TV_SEC_MAX_VAL (LONG_MAX/1000001) ++ + #ifdef __GNUC__ + # define iputils_attribute_format(t, n, m) __attribute__((__format__ (t, n, m))) + #else +diff --git a/ping/ping_common.c b/ping/ping_common.c +index dadd2a4..4e99d89 100644 +--- a/ping/ping_common.c ++++ b/ping/ping_common.c +@@ -754,16 +754,32 @@ int gather_statistics(struct ping_rts *rts, uint8_t *icmph, int icmplen, + + restamp: + tvsub(tv, &tmp_tv); +- triptime = tv->tv_sec * 1000000 + tv->tv_usec; +- if (triptime < 0) { +- error(0, 0, _("Warning: time of day goes back (%ldus), taking countermeasures"), triptime); ++ ++ if (tv->tv_usec >= 1000000) { ++ error(0, 0, _("Warning: invalid tv_usec %ld us"), tv->tv_usec); ++ tv->tv_usec = 999999; ++ } ++ ++ if (tv->tv_usec < 0) { ++ error(0, 0, _("Warning: invalid tv_usec %ld us"), tv->tv_usec); ++ tv->tv_usec = 0; ++ } ++ ++ if (tv->tv_sec > TV_SEC_MAX_VAL) { ++ error(0, 0, _("Warning: invalid tv_sec %ld s"), tv->tv_sec); ++ triptime = 0; ++ } else if (tv->tv_sec < 0) { ++ error(0, 0, _("Warning: time of day goes back (%ld s), taking countermeasures"), tv->tv_sec); + triptime = 0; + if (!rts->opt_latency) { + gettimeofday(tv, NULL); + rts->opt_latency = 1; + goto restamp; + } ++ } else { ++ triptime = tv->tv_sec * 1000000 + tv->tv_usec; + } ++ + if (!csfailed) { + rts->tsum += triptime; + rts->tsum2 += (double)((long long)triptime * (long long)triptime); +-- +2.34.1 + diff --git a/meta/recipes-extended/iputils/iputils_20240117.bb b/meta/recipes-extended/iputils/iputils_20240117.bb index 38806897426..5ff5af88475 100644 --- a/meta/recipes-extended/iputils/iputils_20240117.bb +++ b/meta/recipes-extended/iputils/iputils_20240117.bb @@ -10,7 +10,9 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=627cc07ec86a45951d43e30658bbd819" DEPENDS = "gnutls" -SRC_URI = "git://github.com/iputils/iputils;branch=master;protocol=https" +SRC_URI = "git://github.com/iputils/iputils;branch=master;protocol=https \ + file://CVE-2025-47268.patch \ + " SRCREV = "8372f355bdf7a9b0c79338dd8ef8464c00a5c4e2" S = "${WORKDIR}/git"