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EulerOS 2.0 SP9 : glibc (EulerOS-SA-2021-2550)

critical Nessus Plugin ID 153683

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact. (CVE-2021-33574)

 - The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations. (CVE-2021-35942)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected glibc packages.

See Also

http://www.nessus.org/u?91768ec8

Plugin Details

Severity: Critical

ID: 153683

File Name: EulerOS_SA-2021-2550.nasl

Version: 1.3

Type: local

Published: 9/27/2021

Updated: 11/29/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-33574

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:glibc, p-cpe:/a:huawei:euleros:glibc-all-langpacks, p-cpe:/a:huawei:euleros:glibc-common, p-cpe:/a:huawei:euleros:glibc-debugutils, p-cpe:/a:huawei:euleros:glibc-locale-source, p-cpe:/a:huawei:euleros:libnsl, p-cpe:/a:huawei:euleros:nscd, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/27/2021

Vulnerability Publication Date: 5/25/2021

Reference Information

CVE: CVE-2021-33574, CVE-2021-35942