[oe][meta-networking][wrynose][PATCH 4/24] sngrep: patch CVE-2026-90558

[ankur.tyagi85@gmail.com]

From: Ankur Tyagi <ankur.tyagi85@gmail.com>

Details:
https://nvd.nist.gov/vuln/detail/cve-2026-90558

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
 .../sngrep/sngrep/CVE-2026-90558.patch        | 84 +++++++++++++++++++
 .../recipes-support/sngrep/sngrep_1.8.2.bb    |  4 +-
 2 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 meta-networking/recipes-support/sngrep/sngrep/CVE-2026-90558.patch

diff --git a/meta-networking/recipes-support/sngrep/sngrep/CVE-2026-90558.patch b/meta-networking/recipes-support/sngrep/sngrep/CVE-2026-90558.patch
new file mode 100644
index 0000000000..64fd8044a9
--- /dev/null
+++ b/meta-networking/recipes-support/sngrep/sngrep/CVE-2026-90558.patch
@@ -0,0 +1,84 @@
+From 399346a12ca3bcf7703734fa33b5b3427775b014 Mon Sep 17 00:00:00 2001
+From: Kaian <kaian@irontec.com>
+Date: Fri, 7 Aug 2026 08:45:42 +0200
+Subject: [PATCH] fix: prevent stack buffer overflow in SIP attribute
+ formatting
+
+call_get_attribute() formatted the Call-ID, X-Call-ID and Reason header
+text with an unbounded sprintf("%s"). Call-ID/X-Call-ID can hold up to
+MAX_CALLID_SIZE/MAX_XCALLID_SIZE (1023 bytes) and Reason text is copied
+from the raw payload (up to MAX_SIP_PAYLOAD), while all callers pass a
+255-byte SIP_ATTR_MAXLEN stack buffer (call list rendering, sort compare).
+A SIP message with a long Call-ID, X-Call-ID or Reason header overflowed
+the stack, triggerable via pcap, live capture or HEP/EEP remote capture.
+
+Bound these writes with "%.*s" and SIP_ATTR_MAXLEN - 1. Also fix a
+matching off-by-one in msg_get_attribute(), where the existing "%.*s"
+used SIP_ATTR_MAXLEN as the precision and could write 256 bytes
+(255 chars + NUL) into the 255-byte buffer.
+
+Thanks to TristanInSec for reporting the issue.
+
+(cherry picked from commit 1ff74ee3ab5ff280e8ba976aa8c744dca57eb35b)
+
+CVE: CVE-2026-90558
+Upstream-Status: Backport [https://github.com/irontec/sngrep/commit/1ff74ee3ab5ff280e8ba976aa8c744dca57eb35b]
+
+SIP contract change was dropped during backport as it was introduced in
+v1.8.4[1]
+
+[1]https://github.com/irontec/sngrep/commit/c61a26d90c166f996e31aceefc9c2f8f831ccd86
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ src/sip_call.c | 6 +++---
+ src/sip_msg.c  | 6 +++---
+ 2 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/src/sip_call.c b/src/sip_call.c
+index bea879a..68ecb50 100644
+--- a/src/sip_call.c
++++ b/src/sip_call.c
+@@ -257,10 +257,10 @@ call_get_attribute(sip_call_t *call, enum sip_attr_id id, char *value)
+             sprintf(value, "%d", call->index);
+             break;
+         case SIP_ATTR_CALLID:
+-            sprintf(value, "%s", call->callid);
++            sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, call->callid);
+             break;
+         case SIP_ATTR_XCALLID:
+-            sprintf(value, "%s", call->xcallid);
++            sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, call->xcallid);
+             break;
+         case SIP_ATTR_MSGCNT:
+             sprintf(value, "%d", vector_count(call->msgs));
+@@ -282,7 +282,7 @@ call_get_attribute(sip_call_t *call, enum sip_attr_id id, char *value)
+             break;
+         case SIP_ATTR_REASON_TXT:
+             if (call->reasontxt)
+-                sprintf(value, "%s", call->reasontxt);
++                sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, call->reasontxt);
+             break;
+         case SIP_ATTR_WARNING:
+             if (call->warning)
+diff --git a/src/sip_msg.c b/src/sip_msg.c
+index 379a40a..6762862 100644
+--- a/src/sip_msg.c
++++ b/src/sip_msg.c
+@@ -136,13 +136,13 @@ msg_get_attribute(sip_msg_t *msg, int id, char *value)
+             }
+             break;
+         case SIP_ATTR_METHOD:
+-            sprintf(value, "%.*s", SIP_ATTR_MAXLEN, sip_get_msg_reqresp_str(msg));
++            sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, sip_get_msg_reqresp_str(msg));
+             break;
+         case SIP_ATTR_SIPFROM:
+-            sprintf(value, "%.*s", SIP_ATTR_MAXLEN, msg->sip_from);
++            sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, msg->sip_from);
+             break;
+         case SIP_ATTR_SIPTO:
+-            sprintf(value, "%.*s", SIP_ATTR_MAXLEN, msg->sip_to);
++            sprintf(value, "%.*s", SIP_ATTR_MAXLEN - 1, msg->sip_to);
+             break;
+         case SIP_ATTR_SIPFROMUSER:
+             if (msg->sip_from && (ar = strchr(msg->sip_from, '@'))) {
diff --git a/meta-networking/recipes-support/sngrep/sngrep_1.8.2.bb b/meta-networking/recipes-support/sngrep/sngrep_1.8.2.bb
index 12fe3ececa..1bcbebf554 100644
--- a/meta-networking/recipes-support/sngrep/sngrep_1.8.2.bb
+++ b/meta-networking/recipes-support/sngrep/sngrep_1.8.2.bb
@@ -15,7 +15,9 @@ DEPENDS = "\
     ncurses \
 "
 
-SRC_URI = "git://github.com/irontec/sngrep.git;protocol=https;branch=master"
+SRC_URI = "git://github.com/irontec/sngrep.git;protocol=https;branch=master \
+           file://CVE-2026-90558.patch \
+"
 SRCREV = "dad1033640f249fa4994f976cf6ee96826c15702"