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PyPi: Pillow-Simd

CVE-2021-25289

Safety vulnerability ID: 72606

This vulnerability was reviewed by experts

The information on this page was manually curated by our Cybersecurity Intelligence Team.

Created at Mar 19, 2021 Updated at Nov 29, 2024
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Advisory

Affected versions of Pillow-simd, a highly optimized version of the Pillow library for x86 architecture (primarily Intel and AMD CPUs), are vulnerable to CVE-2021-25289. This issue, found in `TiffDecode`, involves a heap-based buffer overflow when decoding crafted YCbCr files due to certain interpretation conflicts with LibTIFF in RGBA mode. Notably, this vulnerability exists because of an incomplete fix for CVE-2020-35654.

Affected package

pillow-simd

Latest version: 9.5.0.post2

Python Imaging Library (Fork)

Affected versions

Fixed versions

Vulnerability changelog

------------------

- Use more specific regex chars to prevent ReDoS. CVE-2021-25292
[hugovk]

- Fix OOB Read in TiffDecode.c, and check the tile validity before reading. CVE-2021-25291
[wiredfool]

- Fix negative size read in TiffDecode.c. CVE-2021-25290
[wiredfool]

- Fix OOB read in SgiRleDecode.c. CVE-2021-25293
[wiredfool]

- Incorrect error code checking in TiffDecode.c. CVE-2021-25289
[wiredfool]

- PyModule_AddObject fix for Python 3.10 5194
[radarhere]

Resources

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Severity Details

CVSS Base Score

CRITICAL 9.8

CVSS v3 Details

CRITICAL 9.8
Attack Vector (AV)
NETWORK
Attack Complexity (AC)
LOW
Privileges Required (PR)
NONE
User Interaction (UI)
NONE
Scope (S)
UNCHANGED
Confidentiality Impact (C)
HIGH
Integrity Impact (I)
HIGH
Availability Availability (A)
HIGH

CVSS v2 Details

HIGH 7.5
Access Vector (AV)
NETWORK
Access Complexity (AC)
LOW
Authentication (Au)
NONE
Confidentiality Impact (C)
PARTIAL
Integrity Impact (I)
PARTIAL
Availability Impact (A)
PARTIAL