CVE-2016-2850

CVE	CVE-2016-2850
State	PUBLISHED
Assigner	mitre
Source Priority	CVE Program / NVD first with legacy fallback
Published	2016-05-13 14:59:11 UTC
Updated	2026-05-06 22:30:45 UTC
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.

Primary CVSS: v3.0 7.5 HIGH from [email protected]

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

Problem Types: CWE-20 | n/a

Version	Source	Type	Score	Severity	Vector
3.0	[email protected]	Primary	7.5	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`
2.0	[email protected]	Primary	5		`AV:N/AC:L/Au:N/C:N/I:P/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

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

Access Vector

Network

Access Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

AV:N/AC:L/Au:N/C:N/I:P/A:N

Type	Vendor	Product	Version	Update	Edition	Language
Application	Botan Project	Botan	1.11.0	All	All	All
Application	Botan Project	Botan	1.11.1	All	All	All
Application	Botan Project	Botan	1.11.10	All	All	All
Application	Botan Project	Botan	1.11.11	All	All	All
Application	Botan Project	Botan	1.11.12	All	All	All
Application	Botan Project	Botan	1.11.13	All	All	All
Application	Botan Project	Botan	1.11.14	All	All	All
Application	Botan Project	Botan	1.11.15	All	All	All
Application	Botan Project	Botan	1.11.16	All	All	All
Application	Botan Project	Botan	1.11.17	All	All	All
Application	Botan Project	Botan	1.11.18	All	All	All
Application	Botan Project	Botan	1.11.19	All	All	All
Application	Botan Project	Botan	1.11.2	All	All	All
Application	Botan Project	Botan	1.11.20	All	All	All
Application	Botan Project	Botan	1.11.21	All	All	All
Application	Botan Project	Botan	1.11.22	All	All	All
Application	Botan Project	Botan	1.11.23	All	All	All
Application	Botan Project	Botan	1.11.24	All	All	All
Application	Botan Project	Botan	1.11.25	All	All	All
Application	Botan Project	Botan	1.11.26	All	All	All
Application	Botan Project	Botan	1.11.27	All	All	All
Application	Botan Project	Botan	1.11.28	All	All	All
Application	Botan Project	Botan	1.11.3	All	All	All
Application	Botan Project	Botan	1.11.4	All	All	All
Application	Botan Project	Botan	1.11.5	All	All	All
Application	Botan Project	Botan	1.11.6	All	All	All
Application	Botan Project	Botan	1.11.7	All	All	All
Application	Botan Project	Botan	1.11.8	All	All	All
Application	Botan Project	Botan	1.11.9	All	All	All
Operating System	Fedoraproject	Fedora	24	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

Reference	Source	Link	Tags
Botan: Multiple vulnerabilities (GLSA 201701-23) — Gentoo security	af854a3a-2127-422b-91ae-364da2661108	security.gentoo.org
'[botan-devel] Botan 1.11.29 released' - MARC	af854a3a-2127-422b-91ae-364da2661108	marc.info	Vendor Advisory
Security — Botan	af854a3a-2127-422b-91ae-364da2661108	botan.randombit.net	Vendor Advisory
[SECURITY] Fedora 24 Update: botan-1.10.13-1.fc24	af854a3a-2127-422b-91ae-364da2661108	lists.fedoraproject.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.