CVE-2020-11721 — MEDIUM (6.5)

Vulnerability Description

load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Saitoha	Libsixel	1.8.6

Related Weaknesses (CWE)

CWE-824

References

https://github.com/saitoha/libsixel/issues/134ExploitThird Party Advisory
https://github.com/saitoha/libsixel/issues/134ExploitThird Party Advisory

FAQ

What is CVE-2020-11721?

CVE-2020-11721 is a vulnerability with a CVSS score of 6.5 (MEDIUM). load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.

How severe is CVE-2020-11721?

CVE-2020-11721 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-11721?

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