Vulnerability Name:

CVE-2016-6878 (CCN-125118)

Assigned:2016-08-30
Published:2016-08-30
Updated:2017-04-15
Summary:The Curve25519 code in botan before 1.11.31, on systems without a native 128-bit integer type, might allow attackers to have unspecified impact via vectors related to undefined behavior, as demonstrated on 32-bit ARM systems compiled by Clang.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-20
Vulnerability Consequences:Unknown
References:Source: MITRE
Type: CNA
CVE-2016-6878

Source: CCN
Type: botan Web site
2016-08-30 (CVE-2016-6878) Undefined behavior in Curve25519

Source: CONFIRM
Type: Third Party Advisory
https://botan.randombit.net/security.html#id2

Source: XF
Type: UNKNOWN
botan-cve20166878-unspecified(125118)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:botan_project:botan:*:*:*:*:*:*:*:* (Version <= 1.11.30)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20166878000
    V
    		CVE-2016-6878 on Ubuntu 12.04 LTS (precise) - medium.
    2017-04-10
    oval:com.ubuntu.trusty:def:20166878000
    V
    		CVE-2016-6878 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-04-10
    oval:com.ubuntu.xenial:def:20166878000
    V
    		CVE-2016-6878 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-10
    oval:com.ubuntu.xenial:def:201668780000000
    V
    		CVE-2016-6878 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-10
    BACK
    botan_project botan *