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TI-2018-13985 Aliases CVE-2018-19756GHSA-gp7j-cqhm-vf6q

There is a heap-based buffer over-read at stb_image.h (function: stbi__tga_load) in…

Priority LOW 26CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

There is a heap-based buffer over-read at stb_image.h (function: stbi__tga_load) in libsixel 1.8.2 that will cause a denial of service.

Why it matters now

EPSS 0.00678 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:saitoha:libsixel:1.8.2:*:*:*:*:*:*:*1.8.2Vulnerablesaitoha
  • cpe:2.3:a:saitoha:libsixel:1.8.2:*:*:*:*:*:*:* Versions 1.8.2 Vulnerable ·saitoha

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-19756
  2. 2026-10-03 Alias added: GHSA-gp7j-cqhm-vf6q

References

Exploit 1

  • TI-2026-32536 libsixel: integer overflow in encoder CVSS 3.1HIGH 7.8
  • TI-2026-25469 libsixel: Use-after-free in load_with_gdkpixbuf() CVSS 3.1HIGH 7.8
  • TI-2026-32537 libsixel: integer overflow in parser CVSS 3.1HIGH 7.1
  • TI-2026-25466 libsixel: Integer Overflow in write_png_to_file() leads to Heap-based Buffer Overflow CVSS 3.1HIGH 7.1
  • TI-2026-25464 libsixel: Use-After-Free in load_gif() CVSS 3.1HIGH 7.0
  • TI-2026-25467 libsixel: Use-after-free in sixel_encoder_encode_bytes() CVSS 3.1HIGH 7.3
See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences