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CVE-2019-6293

Published: 15 January 2019

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.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
flex
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needed)
xenial Needed

jammy Needed

lunar Ignored
(end of life, was needed)
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needed

hirsute Ignored
(end of life)
impish Ignored
(end of life)
trusty Does not exist
(trusty was needed)
upstream Needs triage

mantic Needed

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H