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libiec61850: patch CVE-2026-18582

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Details:
https://nvd.nist.gov/vuln/detail/cve-2026-18582

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Ankur Tyagi
2026-09-15 07:52:11 +05:30
committed by Anuj Mittal
parent a7088b0fda
commit f4c8ac2da1
2 changed files with 52 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-networking/recipes-connectivity/libiec61850/files/CVE-2026-18582.patch
+51
View File
@@ -0,0 +1,51 @@
From 43aa106301639f2afddf11302d25e84c5482e26c Mon Sep 17 00:00:00 2001
From: Michael Zillgith <michael.zillgith@mz-automation.de>
Date: Tue, 16 Jun 2026 19:24:12 +0100
Subject: [PATCH] - MMS server: fixed - oversized RptID written to RCB can
trigger invalid free when reports are sent later
(LIB61850-561)(GHSA-7qg8-hm25-rv5v)
(cherry picked from commit 5b2a69f44256b8548927d8afdd7ac5f5381abe1e)
CVE: CVE-2026-18582
Upstream-Status: Backport [https://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e]
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
src/iec61850/server/mms_mapping/reporting.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/iec61850/server/mms_mapping/reporting.c b/src/iec61850/server/mms_mapping/reporting.c
index 2a230c28..a44f0583 100644
--- a/src/iec61850/server/mms_mapping/reporting.c
+++ b/src/iec61850/server/mms_mapping/reporting.c
@@ -557,7 +557,6 @@ updateSingleTrackingValue(MmsMapping* self, ReportControl* rc, const char* name,
attributeToUpdate = trkInst->resv;
else if (!strcmp(name, "DatSet"))
{
-
char datSet[130];
const char* datSetStr = MmsValue_toString(newValue);
@@ -2664,6 +2663,12 @@ Reporting_RCBWriteAccessHandler(MmsMapping* self, ReportControl* rc, const char*
goto exit_function;
}
+ if (MmsValue_getStringSize(value) > 129)
+ {
+ retVal = DATA_ACCESS_ERROR_OBJECT_VALUE_INVALID;
+ goto exit_function;
+ }
+
#if (CONFIG_MMS_THREADLESS_STACK != 1)
Semaphore_wait(rc->rcbValuesLock);
#endif
@@ -3677,7 +3682,7 @@ sendNextReportEntrySegment(ReportControl* self)
const char* rptIdStr = MmsValue_toString(rptIdFromRcb);
- if (rptIdStr[0] == 0)
+ if (rptIdStr[0] == 0 || MmsValue_getStringSize(rptIdFromRcb) > 129)
{
/* use default rptId when RptID is empty in RCB */
updateWithDefaultRptId(self, &rptId);
meta-networking/recipes-connectivity/libiec61850/libiec61850_1.6.1.bb
+1
View File
@@ -17,6 +17,7 @@ SRCREV = "a13961110b8238d2d8ea577c1fb7592ba3017ad8"
SRC_URI = "git://github.com/mz-automation/${BPN}.git;branch=v1.6;protocol=https;tag=v${PV} \
file://0001-pyiec61850-Use-CMAKE_INSTALL_LIBDIR-from-GNUInstallD.patch \
file://CVE-2026-18582.patch \
"