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CVE-2026-78465Gimp: integer overflow in pcx loader (planes=4) leads to heap overflow on 32-bit

GNOME GIMP; Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8 Yayım: (2 ay önce)

Açıklama

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

Zayıflık türü (CWE): CWE-190

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
gimp gimp 3.0.0 – ≤ 3.2.4
GNOME GIMP all versions
Red Hat Red Hat Enterprise Linux 6 —
Red Hat Red Hat Enterprise Linux 7 —
Red Hat Red Hat Enterprise Linux 8 —
Red Hat Red Hat Enterprise Linux 9 —

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (2)

  • cpe:2.3:a:gimp:gimp:*:*:*:*:*:*:*:* ≥ 3.0.0 ≤ 3.2.4
  • cpe:2.3:a:gimp:gimp:3.3.1:*:*:*:*:*:*:*