CVE-2019-19720 — HIGH (8.8)

Vulnerability Description

Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Yabasic	Yabasic	2.86.1

Related Weaknesses (CWE)

CWE-787

References

http://www.yabasic.de/whatsnew.htmlRelease NotesVendor Advisory
https://github.com/marcIhm/yabasic/issues/36ExploitThird Party Advisory
http://www.yabasic.de/whatsnew.htmlRelease NotesVendor Advisory
https://github.com/marcIhm/yabasic/issues/36ExploitThird Party Advisory

FAQ

What is CVE-2019-19720?

CVE-2019-19720 is a vulnerability with a CVSS score of 8.8 (HIGH). Yabasic 2.86.1 has a heap-based buffer overflow in the yylex() function in flex.c via a crafted BASIC source file.

How severe is CVE-2019-19720?

CVE-2019-19720 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-19720?

Check the references section above for vendor advisories and patch information. Affected products include: Yabasic Yabasic.