Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Python Pillow
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
|
— |
12.3.0
|
References 4
https://github.com/python-pillow/Pillow/commit/cce3bdb867c77a3420261ed1bfdb6b07…
security-advisories@github.com
https://github.com/python-pillow/Pillow/pull/9695
security-advisories@github.com
https://github.com/python-pillow/Pillow/releases/tag/12.3.0
security-advisories@github.com
https://github.com/python-pillow/Pillow/security/advisories/GHSA-xj96-63gp-2gmr
security-advisories@github.com