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Advisories

ION-DTN 2.2.1b-4.2.0 Integer Overflow Heap Corruption via DGR

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Severity
critical
Date
Affecting

  • ION-DTN >= 2.2.1b, <= 4.2.0

CWE
  • CWE-190 Integer Overflow or Wraparound
  • CWE-787 Out-of-bounds Write
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
SecMate (secmate.dev)
Description
NASA JPL ION-DTN 2.2.1b through 4.2.0 contains an integer overflow vulnerability in the Datagram Retransmission (DGR) convergence layer that allows attackers to corrupt heap memory by sending a maliciously crafted 64-bit svcDataLength value that wraps a 32-bit allocation size calculation. Attackers can exploit the dgr_receive API's unchecked memcpy operation using synthetic datagrams or DGR traffic over internal IPC or custom transports to trigger an out-of-bounds write, leading to denial of service or potential remote code execution.

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