CVE-2025-46333

Description

z2d is a pure Zig 2D graphics library. Versions of z2d after `0.5.1` and up to and including `0.6.0`, when writing from one surface to another using `z2d.compositor.StrideCompositor.run`, and higher-level operations when the anti-aliasing mode is set to `.default` (such as `Context.fill`, `Context.stroke`, `painter.fill`, and `painter.stroke`), the source surface can be completely out-of-bounds on the x-axis, but not on the y-axis, by way of a negative offset. This results in an overflow of the value controlling the length of the stride. In non-safe optimization modes (consumers compiling with `ReleaseFast` or `ReleaseSmall`), this could potentially lead to invalid memory accesses or corruption. This issue is patched in version `0.6.1`. Users on an untagged version after `v0.5.1` and before `v0.6.1` are advised to update to address the vulnerability. Those still on Zig `0.13.0` are recommended to downgrade to `v0.5.1`.

Reserved 2025-04-22 | Published 2025-04-25 | Updated 2025-04-28 | Assigner GitHub_M

Problem types

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122: Heap-based Buffer Overflow

CWE-190: Integer Overflow or Wraparound

Product status

> 0.5.1, <= 0.6.0
affected

References

github.com/...er/z2d/security/advisories/GHSA-mm4c-p35v-7hx3

github.com/vancluever/z2d/issues/104

github.com/vancluever/z2d/issues/105

cve.org (CVE-2025-46333)

nvd.nist.gov (CVE-2025-46333)

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