Vulnerability Name:

CVE-2018-20673 (CCN-155168)

Assigned:2018-12-27
Published:2018-12-27
Updated:2020-08-24
Summary:The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for "Create an array for saving the template argument values") that can trigger a heap-based buffer overflow, as demonstrated by nm.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
5.3 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
4.7 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.3 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-787
CWE-190
CWE-122
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-20673

Source: BID
Type: Third Party Advisory, VDB Entry
106454

Source: XF
Type: UNKNOWN
gnubinutils-cve201820673-bo(155168)

Source: CCN
Type: Sourceware Bugzilla – Bug 24039
integer overflow in libiberty, heap overflow will be triggered

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24039

Source: CCN
Type: GNU Web site
GNU Binutils

Source: CCN
Type: IBM Security Bulletin 1143448 (Watson Studio Local)
Multiple Vulnerabilities in GNU Binutils affects Watson Studio Local

Source: CCN
Type: IBM Security Bulletin 6252337 (Netezza Platform Software)
Multiple vulnerabilities in GNU Binutils affect IBM Netezza Platform Software clients.

Source: CCN
Type: IBM Security Bulletin 6445777 (Netezza Performance Server)
Multiple vulnerabilities in GNU Binutils affect IBM Netezza Performance Server

Source: CCN
Type: IBM Security Bulletin 6453339 (Netezza Analytics for NPS)
Multiple vulnerabilities in GNU binutils affect IBM Netezza Analytics for NPS

Source: CCN
Type: IBM Security Bulletin 6856409 (Cloud Pak for Security)
IBM Cloud Pak for Security includes components with multiple known vulnerabilities

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:binutils:2.31.1:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:gnu:binutils:2.31.1:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:watson_studio_local:1.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_pak_for_security:1.10.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_pak_for_security:1.10.6.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20214386
    P
    		RHSA-2021:4386: gcc security and bug fix update (Low)
    2021-11-09
    oval:com.ubuntu.disco:def:2018206730000000
    V
    		CVE-2018-20673 on Ubuntu 19.04 (disco) - low.
    2019-01-04
    oval:com.ubuntu.bionic:def:201820673000
    V
    		CVE-2018-20673 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-01-04
    oval:com.ubuntu.cosmic:def:2018206730000000
    V
    		CVE-2018-20673 on Ubuntu 18.10 (cosmic) - low.
    2019-01-04
    oval:com.ubuntu.cosmic:def:201820673000
    V
    		CVE-2018-20673 on Ubuntu 18.10 (cosmic) - medium.
    2019-01-04
    oval:com.ubuntu.bionic:def:2018206730000000
    V
    		CVE-2018-20673 on Ubuntu 18.04 LTS (bionic) - low.
    2019-01-04
    oval:com.ubuntu.trusty:def:201820673000
    V
    		CVE-2018-20673 on Ubuntu 14.04 LTS (trusty) - medium.
    2019-01-04
    oval:com.ubuntu.xenial:def:2018206730000000
    V
    		CVE-2018-20673 on Ubuntu 16.04 LTS (xenial) - low.
    2019-01-04
    oval:com.ubuntu.xenial:def:201820673000
    V
    		CVE-2018-20673 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-01-04
    BACK
    gnu binutils 2.31.1
    gnu binutils 2.31.1
    ibm watson studio local 1.2.3
    ibm cloud pak for security 1.10.0.0
    ibm cloud pak for security 1.10.6.0