CVE-2019-25569 — MEDIUM (6.2)

Vulnerability Description

RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service.

CVSS Score

6.2

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Crun	Realterm	2.0.0.70

Related Weaknesses (CWE)

CWE-787

References

https://realterm.sourceforge.io/Product
https://sourceforge.net/projects/realterm/files/Product
https://www.exploit-db.com/exploits/46391ExploitThird Party AdvisoryVDB Entry
https://www.vulncheck.com/advisories/realterm-serial-terminal-seh-overflow-crashThird Party Advisory

FAQ

What is CVE-2019-25569?

CVE-2019-25569 is a vulnerability with a CVSS score of 6.2 (MEDIUM). RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception ...

How severe is CVE-2019-25569?

CVE-2019-25569 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-25569?

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