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CVE-2021-46829

Status: ModifiedHigh (7.8)—

GNOME GdkPixbuf (aka GDK-PixBuf) before 2.42.8 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animation.c composite_frame. This overflow is controllable and could be abused for code execution, especially on 32-bit systems.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Debian — Debian LinuxFedoraproject — FedoraGnome — Gdk-pixbuf

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-46829",
  "cveTags": [],
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          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
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  "published": "2022-07-24T19:15:10.097",
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      "description": [
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      "lang": "en",
      "value": "GNOME GdkPixbuf (aka GDK-PixBuf) before 2.42.8 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animation.c composite_frame. This overflow is controllable and could be abused for code execution, especially on 32-bit systems."
    },
    {
      "lang": "es",
      "value": "GdkPixbuf de GNOME (también se conoce como GDK-PixBuf) versiones anteriores a 2.42.8, permite un desbordamiento del búfer en la región heap de la memoria cuando son compuestos o borran fotogramas en archivos GIF, como es demostrado por el archivo io-gif-animation.c composite_frame. Este desbordamiento es controlable y podría ser abusado para la ejecución de código, especialmente en sistemas de 32 bits"
    }
  ],
  "lastModified": "2026-06-17T04:15:37.840",
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