385
VMScore

CVE-2019-6293

Published: 15/01/2019 Updated: 06/10/2023
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 385
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Vulnerability Summary

An issue exists 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.

Vulnerability Trend

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westes flex 2.6.4

Vendor Advisories

Debian Bug report logs - #919428 flex: CVE-2019-6293: stack consumption Package: src:flex; Maintainer for src:flex is Manoj Srivastava <srivasta@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Tue, 15 Jan 2019 20:42:01 UTC Severity: normal Tags: security, upstream Found in version flex/264 ...
An issue was discovered in the function mark_beginning_as_normal in nfac in flex 264 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 ...