CVE-2021-46700 — MEDIUM (6.5)

Vulnerability Description

In libsixel 1.8.6, sixel_encoder_output_without_macro (called from sixel_encoder_encode_frame in encoder.c) has a double free.

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-415

References

https://github.com/saitoha/libsixel/issues/158ExploitIssue TrackingThird Party Advisory
https://github.com/saitoha/libsixel/issues/158ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2021-46700?

CVE-2021-46700 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In libsixel 1.8.6, sixel_encoder_output_without_macro (called from sixel_encoder_encode_frame in encoder.c) has a double free.

How severe is CVE-2021-46700?

CVE-2021-46700 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-2021-46700?

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