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EulerOS 2.0 SP8 : binutils (EulerOS-SA-2021-1976)

medium Nessus Plugin ID 151031

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

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

 - There's a flaw in the BFD library of binutils in versions before 2.36. An attacker who supplies a crafted file to an application linked with BFD, and using the DWARF functionality, could cause an impact to system availability by way of excessive memory consumption.(CVE-2021-3487)

 - There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.(CVE-2021-20197)

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 binutils packages.

See Also

http://www.nessus.org/u?7ed5515d

Plugin Details

Severity: Medium

ID: 151031

File Name: EulerOS_SA-2021-1976.nasl

Version: 1.2

Type: local

Published: 6/28/2021

Updated: 6/30/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2021-20197

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:binutils, p-cpe:/a:huawei:euleros:binutils-devel

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 Ease: No known exploits are available

Patch Publication Date: 6/28/2021

Reference Information

CVE: CVE-2021-20197, CVE-2021-3487