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Off-by-one Error Affecting botan package, versions <2.6.0-r0

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.1% (43rd percentile)

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  • Snyk ID SNYK-ALPINE319-BOTAN-6105770
  • published 8 Dec 2023
  • disclosed 12 Apr 2018
Report a new vulnerability Found a mistake?

Introduced: 12 Apr 2018

CVE-2018-9860 Open this link in a new tab
CWE-193 Open this link in a new tab

How to fix?

Upgrade Alpine:3.19 botan to version 2.6.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream botan package and not the botan package as distributed by Alpine. See How to fix? for Alpine:3.19 relevant fixed versions and status.

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.