Denial of Service (DoS) Affecting botan package, versions [1.11.32,2.6.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-UNMANAGED-BOTAN-2370640
  • published26 Jan 2022
  • disclosed12 Apr 2018
  • creditUnknown

Introduced: 12 Apr 2018

CVE-2018-9860  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade botan to version 2.6.0 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). 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.

CVSS Scores

version 3.1