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CBL Mariner 2.0 Security Update: flex (CVE-2019-6293)

medium Nessus Plugin ID 201584

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of flex installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2019-6293 advisory.

 - An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service. (CVE-2019-6293)

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 affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2019-6293

Plugin Details

Severity: Medium

ID: 201584

File Name: mariner_CVE-2019-6293.nasl

Version: 1.1

Type: local

Published: 7/3/2024

Updated: 7/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2019-6293

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:microsoft:cbl-mariner:flex-debuginfo, p-cpe:/a:microsoft:cbl-mariner:flex, p-cpe:/a:microsoft:cbl-mariner:flex-devel, x-cpe:/o:microsoft:cbl-mariner

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2024

Vulnerability Publication Date: 1/15/2019

Reference Information

CVE: CVE-2019-6293