Heap Buffer Overflow in libvips Due to Incorrect Alpha Channel Interpretation
CVE-2025-29769

8.5HIGH

Key Information:

Vendor

Libvips

Status
Libvips
Vendor
CVE Published:
7 April 2025

What is CVE-2025-29769?

The libvips image processing library has a vulnerability that arises during the heifsave operation, where it may inaccurately assess the presence of an alpha channel in certain multiband TIFF images. This can lead to a situation where a 3-channel HEIF image is mistakenly created without an alpha channel, while simultaneously attempting to write 4 channels of data. Consequently, this mismatch results in a heap buffer overflow, potentially crashing the process. The issue has been addressed in version 8.16.1 of the library.

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Affected Version(s)

libvips < 8.16.1

References

https://github.com/libvips/libvips/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/libvips/libvips/pull/4392
x_refsource_MISC
https://github.com/libvips/libvips/pull/4394
x_refsource_MISC

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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