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.

See Also

http://www.nessus.org/u?17470e37

https://packages.debian.org/source/stretch/bouncycastle

https://www.debian.org/security/2017/dsa-4072

Plugin Details

Severity: Medium

ID: 105432

File Name: debian_DSA-4072.nasl

Version: 3.6

Type: local

Agent: unix

Published: 12/26/2017

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

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

CVSS v3

Risk Factor: Medium

Base Score: 5.9

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

Vulnerability Information

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

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

Patch Publication Date: 12/21/2017

Reference Information

CVE: CVE-2017-13098

DSA: 4072