Fedora 28 : botan2 (2018-eaa7de17ae)

Low Nessus Plugin ID 120879


The remote Fedora host is missing a security update.


Update Botan2 to 2.7.0.

Focus of this release is on performance and side channel hardening.

- Address side channels in RSA key generation and ECDSA signing

- Side channel hardening in many core algorithms (modular exponentiation, ECC scalar multiply, Karatsuba multiplication, Barrett reduction, etc) to reduce the risk of future exploitable side channels.

- Many optimizations for ECC operations, RSA (including key gen), DSA, DH, and XMSS. Typical speedups vs 2.6.0 is 10 to 40% depending on operation and key size.

- Add Scrypt password hashing. Also supported is using Scrypt to derive keys for private key encryption (format compatible with upcoming OpenSSL 1.1.1)

- Add base32 encoding/decoding

- Plus many bug fixes and smaller enhancements documented in the [release notes](https://botan.randombit.net/news.html#version-2-7

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected botan2 package.

See Also



Plugin Details

Severity: Low

ID: 120879

File Name: fedora_2018-eaa7de17ae.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2019/01/03

Updated: 2020/03/02

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 1.9

Temporal Score: 1.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:botan2, cpe:/o:fedoraproject:fedora:28

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/07/11

Vulnerability Publication Date: 2018/06/13

Reference Information

CVE: CVE-2018-0495, CVE-2018-12435