A type confusion issue was discovered in CCN-lite 2, leading to a memory access violation and a failure of the nonce feature (which, for example, helped with loop prevention). ccnl_fwd_handleInterest assumes that the union member s is of type ccnl_pktdetail_ndntlv_s. However, if the type is in fact struct ccnl_pktdetail_ccntlv_s or struct ccnl_pktdetail_iottlv_s, the memory at that point is either uninitialised or points to data that is not a nonce, which renders the code using the local variable nonce pointless. A later nonce check is insufficient.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-01-31T20:00:00Z

Updated: 2024-09-17T01:25:53.363Z

Reserved: 2018-01-31T00:00:00Z

Link: CVE-2018-6480

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-01-31T20:29:00.790

Modified: 2024-11-21T04:10:44.793

Link: CVE-2018-6480

cve-icon Redhat

No data.