Debian DSA-4072-1 : bouncycastle - security update

medium Nessus Plugin ID 105432

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Synopsis

The remote Debian host is missing a security-related update.

Description

Hanno Boeck, Juraj Somorovsky and Craig Young discovered that the TLS implementation in Bouncy Castle is vulnerable to an adaptive chosen ciphertext attack against RSA keys.

Solution

Upgrade the bouncycastle packages.

For the stable distribution (stretch), this problem has been fixed in version 1.56-1+deb9u1.

Plugin Details

Severity: Medium

ID: 105432

File Name: debian_DSA-4072.nasl

Version: 3.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/26/2017

Updated: 11/11/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2017-13098

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:bouncycastle

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/21/2017

Reference Information

CVE: CVE-2017-13098

DSA: 4072

Detections

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