CVE-2020-21049

MEDIUM
6.5
CVSS Score
Published: September 14, 2021 at 03:09 PM UTC
Updated: June 17, 2026 at 03:03 AM UTC
1 product affected across 1 vendorLibsixel

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

An invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause a denial of service (DOS) via a crafted PSD file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.8.5

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

x_refsource_MISCRelease NotesThird Party Advisory
https://github.com/saitoha/libsixel/blob/master/ChangeLog
x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
https://github.com/saitoha/libsixel/issues/74
x_refsource_MISCRelease NotesThird Party Advisory
https://github.com/saitoha/libsixel/releases/tag/v1.8.5

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125

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