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wireshark: patch CVE-2026-0962
Details: https://nvd.nist.gov/vuln/detail/CVE-2026-0962 Backport the commit that is referenced in the related gitlab issue[1]. [1]: https://gitlab.com/wireshark/wireshark/-/issues/20945 Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com> Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Gyorgy Sarvari
Anuj Mittal
parent
b6fe5458db
commit
e23c3d78ff
@ -0,0 +1,131 @@
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From 4b1c045a4639b54a0aea717667a30c01c683001c Mon Sep 17 00:00:00 2001
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From: Gerald Combs <gerald@wireshark.org>
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Date: Mon, 12 Jan 2026 17:01:48 -0800
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Subject: [PATCH] SOME/IP-SD: Fix a buffer overflow
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Make sure we don't write past the end of our option port array. Make our
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option count unsigned.
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Fixes #20945
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(cherry picked from commit 55ec8b3db4968c97115f014fb5974206cdf57454)
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Conflicts:
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epan/dissectors/packet-someip-sd.c
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CVE: CVE-2026-0962
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Upstream-Status: Backport [https://gitlab.com/wireshark/wireshark/-/commit/825b83e1ed146f6c8fa8f1d7ad2794061b82c895]
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Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
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---
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epan/dissectors/packet-someip-sd.c | 25 +++++++++++++++----------
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1 file changed, 15 insertions(+), 10 deletions(-)
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diff --git a/epan/dissectors/packet-someip-sd.c b/epan/dissectors/packet-someip-sd.c
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index 85144d5..79935bb 100644
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--- a/epan/dissectors/packet-someip-sd.c
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+++ b/epan/dissectors/packet-someip-sd.c
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@@ -242,6 +242,7 @@ static expert_field ef_someipsd_option_unknown = EI_INIT;
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static expert_field ef_someipsd_option_wrong_length = EI_INIT;
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static expert_field ef_someipsd_L4_protocol_unsupported = EI_INIT;
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static expert_field ef_someipsd_config_string_malformed = EI_INIT;
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+static expert_field ef_someipsd_too_many_options = EI_INIT;
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/*** prototypes ***/
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void proto_register_someip_sd(void);
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@@ -274,7 +275,7 @@ someip_sd_register_ports(guint32 opt_index, guint32 opt_num, guint32 option_coun
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}
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static void
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-dissect_someip_sd_pdu_option_configuration(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, int optionnum) {
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+dissect_someip_sd_pdu_option_configuration(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, unsigned optionnum) {
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guint32 offset_orig = offset;
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const guint8 *config_string;
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proto_item *ti;
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@@ -317,7 +318,7 @@ dissect_someip_sd_pdu_option_configuration(tvbuff_t *tvb, packet_info *pinfo, pr
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}
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static void
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-dissect_someip_sd_pdu_option_loadbalancing(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, guint32 offset, guint32 length, int optionnum) {
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+dissect_someip_sd_pdu_option_loadbalancing(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, guint32 offset, guint32 length, unsigned optionnum) {
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tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, NULL, "%d: Load Balancing Option", optionnum);
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/* Add common fields */
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@@ -337,7 +338,7 @@ dissect_someip_sd_pdu_option_loadbalancing(tvbuff_t *tvb, packet_info *pinfo _U_
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}
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static void
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-dissect_someip_sd_pdu_option_ipv4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, int optionnum, guint32 option_ports[]) {
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+dissect_someip_sd_pdu_option_ipv4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, unsigned optionnum, guint32 option_ports[]) {
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guint8 type = 255;
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const gchar *description = NULL;
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guint32 l4port = 0;
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@@ -350,7 +351,7 @@ dissect_someip_sd_pdu_option_ipv4(tvbuff_t *tvb, packet_info *pinfo, proto_tree
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type = tvb_get_guint8(tvb, offset + 2);
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description = val_to_str(type, sd_option_type, "(Unknown Option: %d)");
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- tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti_top, "%d: %s Option", optionnum, description);
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+ tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti_top, "%u: %s Option", optionnum, description);
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if (length != SD_OPTION_IPV4_LENGTH) {
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expert_add_info(pinfo, ti_top, &ef_someipsd_option_wrong_length);
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@@ -391,7 +392,7 @@ dissect_someip_sd_pdu_option_ipv4(tvbuff_t *tvb, packet_info *pinfo, proto_tree
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}
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static void
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-dissect_someip_sd_pdu_option_ipv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, int optionnum, guint32 option_ports[]) {
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+dissect_someip_sd_pdu_option_ipv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, unsigned optionnum, guint32 option_ports[]) {
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guint8 type = 255;
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const gchar *description = NULL;
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guint32 l4port = 0;
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@@ -404,7 +405,7 @@ dissect_someip_sd_pdu_option_ipv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree
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type = tvb_get_guint8(tvb, offset + 2);
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description = val_to_str(type, sd_option_type, "(Unknown Option: %d)");
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- tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti_top, "%d: %s Option", optionnum, description);
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+ tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti_top, "%u: %s Option", optionnum, description);
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if (length != SD_OPTION_IPV6_LENGTH) {
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expert_add_info(pinfo, ti_top, &ef_someipsd_option_wrong_length);
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@@ -444,11 +445,11 @@ dissect_someip_sd_pdu_option_ipv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree
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}
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static void
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-dissect_someip_sd_pdu_option_unknown(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, int optionnum) {
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+dissect_someip_sd_pdu_option_unknown(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, unsigned optionnum) {
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guint32 len = 0;
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proto_item *ti;
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- tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti, "%d: %s Option", optionnum,
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+ tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_someip_sd_option, &ti, "%u: %s Option", optionnum,
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val_to_str_const(tvb_get_guint8(tvb, offset + 2), sd_option_type, "Unknown"));
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expert_add_info(pinfo, ti, &ef_someipsd_option_unknown);
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@@ -473,7 +474,7 @@ static int
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dissect_someip_sd_pdu_options(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *ti, guint32 offset_orig, guint32 length, guint32 option_ports[], guint *option_count) {
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guint16 real_length = 0;
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guint8 option_type = 0;
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- int optionnum = 0;
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+ unsigned optionnum = 0;
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tvbuff_t *subtvb = NULL;
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guint32 offset = offset_orig;
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@@ -484,7 +485,10 @@ dissect_someip_sd_pdu_options(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tre
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}
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while (tvb_bytes_exist(tvb, offset, SD_OPTION_MINLENGTH)) {
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- ws_assert(optionnum >= 0 && optionnum < SD_MAX_NUM_OPTIONS);
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+ if (optionnum >= SD_MAX_NUM_OPTIONS) {
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+ expert_add_info(pinfo, ti, &ef_someipsd_too_many_options);
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+ return offset;
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+ }
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option_ports[optionnum] = 0;
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real_length = tvb_get_ntohs(tvb, offset) + 3;
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@@ -1195,6 +1199,7 @@ proto_register_someip_sd(void) {
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{ &ef_someipsd_option_wrong_length,{ "someipsd.option_wrong_length", PI_MALFORMED, PI_ERROR, "SOME/IP-SD Option length is incorrect!", EXPFILL } },
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{ &ef_someipsd_L4_protocol_unsupported,{ "someipsd.L4_protocol_unsupported", PI_MALFORMED, PI_ERROR, "SOME/IP-SD Unsupported Layer 4 Protocol!", EXPFILL } },
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{ &ef_someipsd_config_string_malformed,{ "someipsd.config_string_malformed", PI_MALFORMED, PI_ERROR, "SOME/IP-SD Configuration String malformed!", EXPFILL } },
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+ { &ef_someipsd_too_many_options,{ "someipsd.too_many_options", PI_MALFORMED, PI_ERROR, "SOME/IP-SD Too many options!", EXPFILL } },
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};
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/* Register Protocol, Fields, ETTs, Expert Info, Taps, Dissector */
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@ -14,6 +14,7 @@ SRC_URI = "https://1.eu.dl.wireshark.org/src/all-versions/wireshark-${PV}.tar.xz
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file://0004-lemon-Remove-line-directives.patch \
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file://0001-UseLemon.cmake-do-not-use-lemon-data-from-the-host.patch \
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file://CVE-2025-9817.patch \
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file://CVE-2026-0962.patch \
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"
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UPSTREAM_CHECK_URI = "https://1.as.dl.wireshark.org/src/all-versions"
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