An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will subsequently fail and the connection will be closed. This could be used for denial of service. No information leak occurs.
Advisories
Source ID Title
EUVD EUVD EUVD-2018-21453 An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will subsequently fail and the connection will be closed. This could be used for denial of service. No information leak occurs.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T07:24:56.311Z

Reserved: 2018-04-09T00:00:00

Link: CVE-2018-9860

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-04-12T05:29:00.220

Modified: 2024-11-21T04:15:49.560

Link: CVE-2018-9860

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.