Detections
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RHEL 7 : glibc (RHSA-2021:2813)
high Nessus Plugin ID 151865
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Synopsis
The remote Red Hat host is missing a security update for glibc.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2813 advisory.The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system.
Without these libraries, the Linux system cannot function correctly.
Security Fix(es):
* glibc: stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long double with a non-canonical bit pattern (CVE-2020-29573)
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.
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 glibc package based on the guidance in RHSA-2021:2813.See Also
http://www.nessus.org/u?bd49355b
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: High
ID: 151865
File Name: redhat-RHSA-2021-2813.nasl
Version: 1.9
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 7/21/2021
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2020-29573
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_e4s:7.4, p-cpe:/a:redhat:enterprise_linux:glibc-headers, p-cpe:/a:redhat:enterprise_linux:glibc-utils, p-cpe:/a:redhat:enterprise_linux:glibc-common, p-cpe:/a:redhat:enterprise_linux:glibc-devel, p-cpe:/a:redhat:enterprise_linux:glibc-static, cpe:/o:redhat:rhel_aus:7.4, p-cpe:/a:redhat:enterprise_linux:glibc, cpe:/o:redhat:rhel_tus:7.4, p-cpe:/a:redhat:enterprise_linux:nscd
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 7/20/2021
Vulnerability Publication Date: 12/6/2020
Reference Information
CVE: CVE-2020-29573