CVE-2019-6293

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5

Description

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.

Overview

CVE ID
CVE-2019-6293

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2019-01-15T00:29:00

Last Modified Date
2020-08-24T17:37:01

Weakness Enumerations

CWE	URL
CWE-674	http://cwe.mitre.org/data/definitions/674.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:flex_project:flex:2.6.4:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
4.3

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
2.9

CVSS Version 3

Version
3.0

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/westes/flex/issues/414	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-6293
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6293

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:16:51				Added to TrackCVE
2022-12-03 16:23:22	2019-01-15T00:29Z	2019-01-15T00:29:00	CVE Published Date	updated
2022-12-03 16:23:22		2020-08-24T17:37:01	CVE Modified Date	updated
2022-12-03 16:23:22		Analyzed	Vulnerability Status	updated