CVE-2026-75584

Zayıflık

ION-DTN before 4.2.1-a.1 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash the ION process by sending a BPv7 bundle with a zero-length payload. The canonicalizePayloadBlock() function in bpsec_util.c passes bundle->payload.length to zco_clone() without validating it against zero, causing a failed CHKZERO assertion that triggers sm_Abort() and terminates the process with SIGABRT before any HMAC verification occurs, requiring no valid key or credential to exploit.

Kaynaklar

• https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-9vgc-2r6g-6qwf
• https://www.vulncheck.com/advisories/ion-dtn-a-1-denial-of-service-via-canonicalizepayloadblock-assertion