tcpreplay: fix CVE-2024-22654

tcpreplay v4.4.4 was discovered to contain an infinite loop via the tcprewrite function at get.c.

Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Archana Polampalli 2025-07-11 17:05:29 +05:30 committed by Armin Kuster
parent 1237560623
commit 2e921c2486
3 changed files with 127 additions and 0 deletions

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@ -0,0 +1,90 @@
From 5b5644356693f5c68dd4295e86f24f1d0a515d60 Mon Sep 17 00:00:00 2001
From: Fred Klassen <fred.klassen@broadcom.com>
Date: Sat, 1 Jun 2024 11:46:10 -0700
Subject: [PATCH 1/2] Bug #827 PR# 842: add check for IPv6 extension header
length
CVE: CVE-2024-22654
Upstream-Status: Backport [https://github.com/appneta/tcpreplay/commit/5b5644356693f5c68dd4295e86f24f1d0a515d60]
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
---
src/common/get.c | 29 +++++++++++++++++++++--------
1 file changed, 21 insertions(+), 8 deletions(-)
diff --git a/src/common/get.c b/src/common/get.c
index 2d91116..89fe95b 100644
--- a/src/common/get.c
+++ b/src/common/get.c
@@ -41,8 +41,8 @@ extern const char pcap_version[];
static void *get_ipv6_next(struct tcpr_ipv6_ext_hdr_base *exthdr, const u_char *end_ptr);
/**
- * Depending on what version of libpcap/WinPcap there are different ways to get
- * the version of the libpcap/WinPcap library. This presents a unified way to
+ * Depending on what version of libpcap there are different ways to get
+ * the version of the libpcap library. This presents a unified way to
* get that information.
*/
const char *
@@ -196,8 +196,15 @@ parse_metadata(const u_char *pktdata,
uint32_t *vlan_offset)
{
bool done = false;
- int res = 0;
- while (!done && res == 0) {
+ assert(next_protocol);
+ assert(l2len);
+ assert(l2offset);
+ assert(vlan_offset);
+
+ if (!pktdata || !datalen)
+ errx(-1, "parse_metadata: invalid L2 parameters: pktdata=0x%p len=%d", pktdata, datalen);
+
+ while (!done) {
switch (*next_protocol) {
case ETHERTYPE_VLAN:
case ETHERTYPE_Q_IN_Q:
@@ -205,18 +212,22 @@ parse_metadata(const u_char *pktdata,
if (*vlan_offset == 0)
*vlan_offset = *l2len;
- res = parse_vlan(pktdata, datalen, next_protocol, l2len);
+ if (parse_vlan(pktdata, datalen, next_protocol, l2len))
+ return -1;
+
break;
case ETHERTYPE_MPLS:
case ETHERTYPE_MPLS_MULTI:
- res = parse_mpls(pktdata, datalen, next_protocol, l2len, l2offset);
+ if (parse_mpls(pktdata, datalen, next_protocol, l2len, l2offset))
+ return -1;
+
break;
default:
done = true;
}
}
- return res;
+ return 0;
}
/*
@@ -605,9 +616,11 @@ get_layer4_v6(const ipv6_hdr_t *ip6_hdr, const u_char *end_ptr)
* no further processing, either TCP, UDP, ICMP, etc...
*/
default:
- if (proto != ip6_hdr->ip_nh) {
+ if (proto != ip6_hdr->ip_nh && next) {
dbgx(3, "Returning byte offset of this ext header: %u", IPV6_EXTLEN_TO_BYTES(next->ip_len));
next = (void *)((u_char *)next + IPV6_EXTLEN_TO_BYTES(next->ip_len));
+ if ((u_char*)next > end_ptr)
+ return NULL;
} else {
dbgx(3, "%s", "Returning end of IPv6 Header");
}
--
2.40.0

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@ -0,0 +1,35 @@
From 52ed63329b37ae83cb86504db2c9deb6a91e2fe9 Mon Sep 17 00:00:00 2001
From: Gabriel Ganne <gabriel.ganne@gmail.com>
Date: Sun, 21 Jan 2024 08:59:10 +0100
Subject: [PATCH 2/2] ipv6 - add check for extension header length
Fixes #827
Signed-off-by: Gabriel Ganne <gabriel.ganne@gmail.com>
CVE: CVE-2024-22654
Upstream-Status: Backport [https://github.com/appneta/tcpreplay/commit/52ed63329b37ae83cb86504db2c9deb6a91e2fe9]
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
---
src/common/get.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/common/get.c b/src/common/get.c
index 89fe95b..c31de5d 100644
--- a/src/common/get.c
+++ b/src/common/get.c
@@ -676,6 +676,10 @@ get_ipv6_next(struct tcpr_ipv6_ext_hdr_base *exthdr, const u_char *end_ptr)
case TCPR_IPV6_NH_HBH:
case TCPR_IPV6_NH_AH:
extlen = IPV6_EXTLEN_TO_BYTES(exthdr->ip_len);
+ if (extlen == 0) {
+ dbg(3, "Malformed IPv6 extension header...");
+ return NULL;
+ }
dbgx(3,
"Looks like we're an ext header (0x%hhx). Jumping %u bytes"
" to the next",
--
2.40.0

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@ -9,6 +9,8 @@ LIC_FILES_CHKSUM = "file://docs/LICENSE;md5=10f0474a2f0e5dccfca20f69d6598ad8"
SRC_URI = "https://github.com/appneta/tcpreplay/releases/download/v${PV}/tcpreplay-${PV}.tar.gz \
file://CVE-2023-4256.patch \
file://CVE-2024-22654-0001.patch \
file://CVE-2024-22654-0002.patch \
"
SRC_URI[sha256sum] = "44f18fb6d3470ecaf77a51b901a119dae16da5be4d4140ffbb2785e37ad6d4bf"