ION-DTN versions before 4.2.0 contain an out-of-bounds read vulnerability in the decodeSdnv function that allows unauthenticated remote attackers to read memory by sending truncated SDNV values. Attackers can send a UDP datagram to the LTP link service input port with a truncated SDNV to trigger reads up to nine bytes past buffer boundaries and underflow byte counters.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
nasa-jpl:ion-dtn
References 7
https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-85pw-28vw-2jf7
GitHub Security Advisory (GHSA-85pw-28vw-2jf7)
https://github.com/nasa-jpl/ION-DTN/commit/d52d22bdd383798712357f86a2778757f740…
Patch Commit
https://github.com/nasa-jpl/ION-DTN/releases/tag/ion-open-source-4.2.0
ION-DTN ion-open-source-4.2.0 Release Notes
https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/plat…
NVD
https://github.com/nasa-jpl/ION-DTN/blob/ion-open-source-4.1.4/ici/library/ion.…
NVD
https://github.com/nasa-jpl/ION-DTN
NVD
https://www.vulncheck.com/advisories/ion-dtn-before-4.2.0-out-of-bounds-read-vi…
VulnCheck Advisory: ION-DTN before 4.2.0 Out-of-Bounds Read via decodeSdnv