Vulnerability Name:

CVE-2017-6949 (CCN-123424)

Assigned:2017-03-16
Published:2017-03-16
Updated:2017-04-05
Summary:An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.
CVSS v3 Severity:8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/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): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/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): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: CHICKEN Scheme Web site
CHICKEN Scheme

Source: MITRE
Type: CNA
CVE-2017-6949

Source: CCN
Type: GNU Mailing List, Wed, 15 Mar 2017 20:44:59 +0100
[Chicken-announce] [SECURITY] Unchecked malloc size in "external" SRFI-4

Source: CONFIRM
Type: Mailing List, Patch, Third Party Advisory
http://lists.gnu.org/archive/html/chicken-announce/2017-03/msg00000.html

Source: BID
Type: UNKNOWN
97317

Source: CCN
Type: BID-97317
CHICKEN CVE-2017-6949 Remote Buffer Overflow Vulnerability

Source: CCN
Type: CHICKEN-Core GIT Repository
projects / chicken-core.git / commitdiff

Source: XF
Type: UNKNOWN
chicken-cve20176949-bo(123424)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:call-cc:chicken:4.12.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201769490000000
    V
    		CVE-2017-6949 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-03-16
    oval:com.ubuntu.artful:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 17.10 (artful) - medium.
    2017-03-16
    oval:com.ubuntu.trusty:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-03-16
    oval:com.ubuntu.xenial:def:201769490000000
    V
    		CVE-2017-6949 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-16
    oval:com.ubuntu.bionic:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-03-16
    oval:com.ubuntu.xenial:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-16
    oval:com.ubuntu.disco:def:201769490000000
    V
    		CVE-2017-6949 on Ubuntu 19.04 (disco) - medium.
    2017-03-16
    oval:com.ubuntu.cosmic:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 18.10 (cosmic) - medium.
    2017-03-16
    oval:com.ubuntu.cosmic:def:201769490000000
    V
    		CVE-2017-6949 on Ubuntu 18.10 (cosmic) - medium.
    2017-03-16
    oval:com.ubuntu.precise:def:20176949000
    V
    		CVE-2017-6949 on Ubuntu 12.04 LTS (precise) - medium.
    2017-03-16
    BACK
    call-cc chicken 4.12.0