Linux Distros Unpatched Vulnerability : CVE-2018-20673

medium Nessus Plugin ID 222187

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- 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. (CVE-2018-20673)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2018-20673

https://security-tracker.debian.org/tracker/CVE-2018-20673

https://ubuntu.com/security/CVE-2018-20673

Plugin Details

Severity: Medium

ID: 222187

File Name: unpatched_CVE_2018_20673.nasl

Version: 1.5

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 9/5/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2018-20673

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:libitm-devel, p-cpe:/a:redhat:enterprise_linux:mingw32-binutils, p-cpe:/a:centos:centos:gdb-gdbserver, p-cpe:/a:redhat:enterprise_linux:libmudflap-static, p-cpe:/a:redhat:enterprise_linux:libtsan-static, p-cpe:/a:centos:centos:gcc-objc%2b%2b, p-cpe:/a:redhat:enterprise_linux:libgo, cpe:/o:redhat:enterprise_linux:5, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:centos:centos:gcc, p-cpe:/a:centos:centos:libquadmath, p-cpe:/a:redhat:enterprise_linux:gcc-go, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-devel, p-cpe:/a:redhat:enterprise_linux:gdb-gdbserver, p-cpe:/a:centos:centos:libgcc, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:libatomic, p-cpe:/a:centos:centos:libgcj-src, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:gcc-objc%2b%2b, p-cpe:/a:canonical:ubuntu_linux:binutils, p-cpe:/a:redhat:enterprise_linux:libmudflap-devel, p-cpe:/a:centos:centos:binutils-devel, p-cpe:/a:centos:centos:libgcj, p-cpe:/a:centos:centos:libstdc%2b%2b-devel, p-cpe:/a:centos:centos:libasan, p-cpe:/a:redhat:enterprise_linux:libgo-devel, p-cpe:/a:centos:centos:libmudflap-devel, p-cpe:/a:redhat:enterprise_linux:libasan-static, p-cpe:/a:centos:centos:libobjc, p-cpe:/a:redhat:enterprise_linux:libgnat, p-cpe:/a:centos:centos:gcc-go, p-cpe:/a:centos:centos:libstdc%2b%2b, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:gcc-plugin-devel, p-cpe:/a:centos:centos:libmudflap, p-cpe:/a:centos:centos:libgnat-devel, p-cpe:/a:redhat:enterprise_linux:libgnat-devel, p-cpe:/a:redhat:enterprise_linux:libobjc, p-cpe:/a:redhat:enterprise_linux:mingw64-binutils, p-cpe:/a:redhat:enterprise_linux:libgfortran-static, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:libgo, p-cpe:/a:centos:centos:gcc-gfortran, p-cpe:/a:redhat:enterprise_linux:libgcc, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b, p-cpe:/a:centos:centos:libmudflap-static, p-cpe:/a:redhat:enterprise_linux:gdb, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:gcc-c%2b%2b, p-cpe:/a:redhat:enterprise_linux:gcc, p-cpe:/a:centos:centos:libgo-static, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:binutils-devel, p-cpe:/a:centos:centos:libgnat, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:gcc-gnat, p-cpe:/a:redhat:enterprise_linux:libquadmath-devel, p-cpe:/a:centos:centos:mingw32-binutils, p-cpe:/a:redhat:enterprise_linux:libasan, p-cpe:/a:redhat:enterprise_linux:gcc-plugin-devel, p-cpe:/a:centos:centos:libitm, p-cpe:/a:redhat:enterprise_linux:cpp, p-cpe:/a:redhat:enterprise_linux:mingw-binutils, p-cpe:/a:centos:centos:libasan-static, p-cpe:/a:centos:centos:libgnat-static, p-cpe:/a:centos:centos:libgfortran-static, p-cpe:/a:redhat:enterprise_linux:libgfortran, p-cpe:/a:redhat:enterprise_linux:libgcj-devel, p-cpe:/a:redhat:enterprise_linux:libgomp, p-cpe:/a:redhat:enterprise_linux:gcc-gfortran, p-cpe:/a:centos:centos:libquadmath-static, p-cpe:/a:centos:centos:libgcj-devel, p-cpe:/a:redhat:enterprise_linux:libquadmath, p-cpe:/a:centos:centos:mingw64-binutils, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-docs, p-cpe:/a:centos:centos:libatomic-static, p-cpe:/a:centos:centos:binutils, p-cpe:/a:centos:centos:libstdc%2b%2b-static, p-cpe:/a:centos:centos:libtsan, p-cpe:/a:redhat:enterprise_linux:gcc-gnat, p-cpe:/a:centos:centos:libtsan-static, p-cpe:/a:redhat:enterprise_linux:libitm-static, p-cpe:/a:centos:centos:libquadmath-devel, p-cpe:/a:centos:centos:libstdc%2b%2b-docs, p-cpe:/a:redhat:enterprise_linux:libgnat-static, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:mingw-binutils-generic, p-cpe:/a:debian:debian_linux:binutils, p-cpe:/a:redhat:enterprise_linux:libgo-static, p-cpe:/a:centos:centos:mingw-binutils, p-cpe:/a:redhat:enterprise_linux:libquadmath-static, p-cpe:/a:centos:centos:libitm-static, p-cpe:/a:centos:centos:libgomp, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-static, p-cpe:/a:centos:centos:cpp, p-cpe:/a:redhat:enterprise_linux:gcc-objc, p-cpe:/a:redhat:enterprise_linux:gcc-java, p-cpe:/a:centos:centos:libgfortran, p-cpe:/a:centos:centos:gcc-objc, p-cpe:/a:centos:centos:libgo-devel, p-cpe:/a:redhat:enterprise_linux:libgcj, p-cpe:/a:redhat:enterprise_linux:mingw-binutils-generic, p-cpe:/a:centos:centos:gcc-java, p-cpe:/a:redhat:enterprise_linux:libmudflap, p-cpe:/a:centos:centos:gcc-c%2b%2b, p-cpe:/a:redhat:enterprise_linux:libatomic, p-cpe:/a:centos:centos:gdb, p-cpe:/a:redhat:enterprise_linux:libgcj-src, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:binutils, p-cpe:/a:centos:centos:libitm-devel, p-cpe:/a:redhat:enterprise_linux:libitm, p-cpe:/a:redhat:enterprise_linux:libtsan, p-cpe:/a:redhat:enterprise_linux:libatomic-static

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 12/27/2018

Reference Information

CVE: CVE-2018-20673