Detections
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RHEL 8 : gcc (RHSA-2021:4386)
medium Nessus Plugin ID 155150
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Synopsis
The remote Red Hat host is missing a security update for gcc.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:4386 advisory.The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.
Security Fix(es):
* libiberty: Integer overflow in demangle_template() function (CVE-2018-20673)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL gcc package based on the guidance in RHSA-2021:4386.See Also
http://www.nessus.org/u?7240878e
http://www.nessus.org/u?b6feecd5
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/errata/RHSA-2021:4386
https://bugzilla.redhat.com/show_bug.cgi?id=1664709
https://bugzilla.redhat.com/show_bug.cgi?id=1925632
https://bugzilla.redhat.com/show_bug.cgi?id=1946758
https://bugzilla.redhat.com/show_bug.cgi?id=1958295
Plugin Details
Severity: Medium
ID: 155150
File Name: redhat-RHSA-2021-4386.nasl
Version: 1.10
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/11/2021
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
Vendor
Vendor Severity: Low
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: p-cpe:/a:redhat:enterprise_linux:gcc-c%2b%2b, p-cpe:/a:redhat:enterprise_linux:libgfortran, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-static, p-cpe:/a:redhat:enterprise_linux:libquadmath-devel, p-cpe:/a:redhat:enterprise_linux:libgomp, p-cpe:/a:redhat:enterprise_linux:liblsan, p-cpe:/a:redhat:enterprise_linux:libitm, p-cpe:/a:redhat:enterprise_linux:gcc, p-cpe:/a:redhat:enterprise_linux:libasan, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-docs, p-cpe:/a:redhat:enterprise_linux:libatomic, p-cpe:/a:redhat:enterprise_linux:gcc-gdb-plugin, p-cpe:/a:redhat:enterprise_linux:libquadmath, p-cpe:/a:redhat:enterprise_linux:libgomp-offload-nvptx, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:gcc-offload-nvptx, p-cpe:/a:redhat:enterprise_linux:libgcc, p-cpe:/a:redhat:enterprise_linux:libtsan, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b, p-cpe:/a:redhat:enterprise_linux:gcc-gfortran, p-cpe:/a:redhat:enterprise_linux:gcc-plugin-devel, p-cpe:/a:redhat:enterprise_linux:libubsan, p-cpe:/a:redhat:enterprise_linux:libitm-devel, p-cpe:/a:redhat:enterprise_linux:cpp, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-devel, p-cpe:/a:redhat:enterprise_linux:libatomic-static
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 11/9/2021
Vulnerability Publication Date: 12/27/2018
Reference Information
CVE: CVE-2018-20673