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Wed, 08 Oct 2025 13:45:00 +0000
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Nasajpl
Nasajpl iondtn |
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| Vendors & Products |
Nasajpl
Nasajpl iondtn |
Tue, 07 Oct 2025 20:15:00 +0000
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ssvc
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Tue, 07 Oct 2025 19:45:00 +0000
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| Description | The NASA’s Interplanetary Overlay Network (ION) is an implementation of Delay/Disruption Tolerant Networking (DTN). A BPv7 bundle with a malformed extension block causes uncontrolled memory allocation inside ION-DTN 4.1.3s, leading to receiver thread termination and a Denial-of-Service (DoS). The triggering bundle contains an extension block starting at `0x85070201005bbb0e20b4ea001a000927c0...`. The first byte in the extension block (0x85) indicates a CBOR array of five elements of which the first four are numbers (0x07, 0x02, 0x01, 0x00) but the fifth element is a byte string of length 27 (`0x5bbb0e20b4ea001a000927c0...`). The vulnerability seems to be due to processing the fifth element of the array (i.e., the byte string) as replacing it with a number makes the vulnerability no longer be triggered. While parsing this extension block, ION obtains a very large block length, which in the code in `bei.c`:764) seems to be passed from `blockLength` which is an unsigned int, to a 32 bit signed integer `blkSize`. The unsigned to signed conversion causes `blkSize` to hold the value of -369092043, which is then converted into a 64-bit unsigned value inside `MTAKE(blkSize)`, resulting in an attempt to allocate an unrealistic amount of memory, causing the error. As of time of publication, no known patched versions of BPv7 exist. | |
| Title | NASA ION-DTN BPv7 4.1.3s Uncontrolled Memory Allocation that leads to Denial-of-Service | |
| Weaknesses | CWE-789 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-10-07T19:57:34.531Z
Reserved: 2025-10-03T22:21:59.614Z
Link: CVE-2025-61910
Updated: 2025-10-07T19:56:12.366Z
Status : Deferred
Published: 2025-10-07T20:15:35.993
Modified: 2026-04-15T00:35:42.020
Link: CVE-2025-61910
No data.
OpenCVE Enrichment
Updated: 2025-10-08T13:35:17Z