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TI-2021-13031 Aliases CVE-2021-33657GHSA-9276-2w6v-wx4c

Out-of-bounds write in SDL2

Priority MEDIUM 42CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

There is a heap overflow problem in video/SDL_pixels.c in SDL (Simple DirectMedia Layer) 2.x to 2.0.18 versions. By crafting a malicious .BMP file, an attacker can cause the application using this library to crash, denial of service or Code execution.

Why it matters now

EPSS 0.02055 81st percentileScored 2026-11-07
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
—SDL22.x to 2.0.18—No fix listedCNA
  • SDL2 Vendor— Affected 2.x to 2.0.18 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:libsdl:simple_directmedia_layer:*:*:*:*:*:*:*:*2.0.0 – 2.0.18VulnerableLibsdl
  • cpe:2.3:a:libsdl:simple_directmedia_layer:*:*:*:*:*:*:*:* Versions 2.0.0 – 2.0.18 Vulnerable ·Libsdl

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33657
  2. 2026-10-03 Alias added: GHSA-9276-2w6v-wx4c

References

Patch 1

Advisory 2

Other 1

  • TI-2019-11109 Out-of-bounds read in Red Hat SDL CVSS 3.1CRITICAL 9.8
  • TI-2019-05383 SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a heap-based… CVSS 3.1HIGH 8.8
  • TI-2019-05349 SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a buffer… CVSS 3.1HIGH 8.8
  • TI-2019-05346 SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a heap-based… CVSS 3.1HIGH 8.8
  • TI-2019-05345 SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a heap-based… CVSS 3.1HIGH 8.8
  • TI-2017-02108 Integer overflow in Talos Simple Direct Media CVSS 3.1HIGH 8.8
See all 25 →

Sources

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