Fix vuln OSV-2024-947

oss-patch · oss-patch · commit 816ed5945463 · 2024-12-24T07:58:19.000Z
diff --git a/Packet++/src/SomeIpSdLayer.cpp b/Packet++/src/SomeIpSdLayer.cpp
@@ -498,6 +498,10 @@ namespace pcpp
 
 		while (remainingLen > 0)
 		{
+            // Ensure there is enough remaining length for a new entry
+            if (remainingLen < sizeof(SomeIpSdEntry::someipsdhdrentry)) {
+                break;
+            }
 			entry = new SomeIpSdEntry(this, offset);
 
 			size_t entryLen = entry->getLength();

Original file line number	Diff line number	Diff line change
`@@ -498,6 +498,10 @@ namespace pcpp`
`498`	`498`
`499`	`499`	`while (remainingLen > 0)`
`500`	`500`	`{`
	`501`	`+ // Ensure there is enough remaining length for a new entry`
	`502`	`+ if (remainingLen < sizeof(SomeIpSdEntry::someipsdhdrentry)) {`
	`503`	`+ break;`
	`504`	`+ }`
`501`	`505`	`entry = new SomeIpSdEntry(this, offset);`
`502`	`506`
`503`	`507`	`size_t entryLen = entry->getLength();`