What’s Vulnerable › Vulnerabilities

CVE-2016-4009

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-04-13 · updated 2026-06-17
• Weakness: CWE-119

Description

Integer overflow in the ImagingResampleHorizontal function in libImaging/Resample.c in Pillow before 3.1.1 allows remote attackers to have unspecified impact via negative values of the new size, which triggers a heap-based buffer overflow.

Affected products

• python-pillow Pillow: through 3.1.0

References

• http://www.securityfocus.com/bid/86064
• https://github.com/python-pillow/Pillow/blob/c3cb690fed5d4bf0c45576759de55d054916c165/CHANGES.rst
• https://github.com/python-pillow/Pillow/commit/4e0d9b0b9740d258ade40cce248c93777362ac1e
• https://github.com/python-pillow/Pillow/pull/1714
• https://security.gentoo.org/glsa/201612-52
• http://www.securityfocus.com/bid/86064
• https://github.com/python-pillow/Pillow/blob/c3cb690fed5d4bf0c45576759de55d054916c165/CHANGES.rst
• https://github.com/python-pillow/Pillow/commit/4e0d9b0b9740d258ade40cce248c93777362ac1e
• https://github.com/python-pillow/Pillow/pull/1714
• https://security.gentoo.org/glsa/201612-52

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