CVE-2016-2850 Information

Description

Botan 1.11.x before 1.11.29 does not enforce TLS policy for (1) signature algorithms and (2) ECC curves which allows remote attackers to conduct downgrade attacks via unspecified vectors.

CVSS Vector

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

Reference

http://botan.randombit.net/security.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html http://marc.info/?l=botan-devel&m=145852488622892&w=2 https://security.gentoo.org/glsa/201701-23

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5