CVE-2020-21049

Published on: 09/14/2021 12:00:00 AM UTC

Last Modified on: 09/24/2021 05:08:00 PM UTC

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

Certain versions of Libsixel from Libsixel Project contain the following vulnerability:

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.

  • CVE-2020-21049 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 6.5 - MEDIUM

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

CVSS2 Score: 4.3 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE PARTIAL

CVE References

Description Tags Link
Address Sanitizer: invalid read at stb_image.h:5669 · Issue #74 · saitoha/libsixel · GitHub github.com
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URL Logo MISC github.com/saitoha/libsixel/issues/74
404 — Bitbucket bitbucket.org
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Inactive LinkNot Archived
URL Logo MISC bitbucket.org/netbsd/pkgsrc/commits/970a81d31ec7498e04d09b6b7771cef35f63cd28
Release v1.8.5 security update · saitoha/libsixel · GitHub github.com
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URL Logo MISC github.com/saitoha/libsixel/releases/tag/v1.8.5
Introduce SIXEL_ALLOCATE_BYTES_MAX macro and limit allocation size to… · saitoha/[email protected] · GitHub github.com
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URL Logo MISC github.com/saitoha/libsixel/commit/0b1e0b3f7b44233f84e5c9f512f8c90d6bbbe33d
libsixel/ChangeLog at master · saitoha/libsixel · GitHub github.com
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URL Logo MISC github.com/saitoha/libsixel/blob/master/ChangeLog

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationLibsixel ProjectLibsixelAllAllAllAll
  • cpe:2.3:a:libsixel_project:libsixel:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2020-21049 : An invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause… twitter.com/i/web/status/1… 2021-09-14 16:03:39
Twitter Icon @4ng3n01r3 #CyberSecurity #Security #CERT #CVE #Nist #breach #vulnerability : CVE-2020-21049 2021-09-15 06:55:36
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