CentOS 8 : firefox (CESA-2021:1360)

medium Nessus Plugin ID 149237
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VPR Score: 9.2


The remote CentOS host is missing one or more security updates.


The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2021:1360 advisory.

- Mozilla: More internal network hosts could have been probed by a malicious webpage (CVE-2021-23961)

- Mozilla: Out of bound write due to lazy initialization (CVE-2021-23994)

- Mozilla: Use-after-free in Responsive Design Mode (CVE-2021-23995)

- Mozilla: Secure Lock icon could have been spoofed (CVE-2021-23998)

- Mozilla: Blob URLs may have been granted additional privileges (CVE-2021-23999)

- Mozilla: Arbitrary FTP command execution on FTP servers using an encoded URL (CVE-2021-24002)

- Mozilla: Incorrect size computation in WebAssembly JIT could lead to null-reads (CVE-2021-29945)

- Mozilla: Port blocking could be bypassed (CVE-2021-29946)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected firefox package.

See Also


Plugin Details

Severity: Medium

ID: 149237

File Name: centos8_RHSA-2021-1360.nasl

Version: 1.2

Type: local

Agent: unix

Published: 5/3/2021

Updated: 5/3/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 9.2

CVSS Score Source: CVE-2021-23961

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.4

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:firefox

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 4/26/2021

Vulnerability Publication Date: 1/26/2021

Reference Information

CVE: CVE-2021-23961, CVE-2021-23994, CVE-2021-23995, CVE-2021-23998, CVE-2021-23999, CVE-2021-24002, CVE-2021-29945, CVE-2021-29946

RHSA: 2021:1360