CVE-2018-9860

Published: Apr 12, 2018Modified: Jun 17, 2026

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

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.

Affected (1)

Products: Botan Project: Botan

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Botan Project Botan	From 1.11.32 to 2.6.0

Related CWEs

Off-by-one Error

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

References (4)

https://botan.randombit.net/security.html

Source: cve@mitre.org

Vendor Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434

Source: cve@mitre.org

Issue Tracking

https://botan.randombit.net/security.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

Timeline

No history available yet.