An issue was discovered in Suricata 4.1.4. By sending multiple IPv4 packets that have invalid IPv4Options, the function IPV4OptValidateTimestamp in decode-ipv4.c tries to access a memory region that is not allocated. There is a check for o->len < 5 (corresponding to 2 bytes of header and 3 bytes of data). Then, "flag = *(o->data + 3)" places one beyond the 3 bytes, because the code should have been "flag = *(o->data + 1)" instead.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-09-24T19:20:58

Updated: 2019-10-02T13:53:14

Reserved: 2019-09-18T00:00:00


Link: CVE-2019-16411

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2019-09-24T20:15:11.967

Modified: 2019-10-02T14:15:12.320


Link: CVE-2019-16411

JSON object: View

cve-icon Redhat Information

No data.

CWE