Vulnerability Name:

CVE-2017-1084 (CCN-127639)

Assigned:2016-11-30
Published:2017-06-19
Updated:2018-11-23
Summary:In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/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): None
Availibility (A): High
8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.6 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
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
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2017-1084

Source: CCN
Type: FreeBSD Web site
FreeBSD

Source: XF
Type: UNKNOWN
freebsd-cve20171084-code-exec(127639)

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [06-28-2017]

Source: EXPLOIT-DB
Type: Third Party Advisory, VDB Entry
42277

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [06-28-2017]

Source: EXPLOIT-DB
Type: Third Party Advisory, VDB Entry
42278

Source: CCN
Type: Qualys Security Advisory QSA - 2017-06-19
The Stack Clash

Source: MISC
Type: Exploit, Technical Description, Third Party Advisory
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

Vulnerable Configuration:Configuration 1:
  • cpe:/o:freebsd:freebsd:*:*:*:*:*:*:*:* (Version < 11.2)

    • Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    freebsd freebsd *
    freebsd freebsd *