CVE-2022-22815
Improper Initialization vulnerability in pillow (PyPI)
What is CVE-2022-22815 About?
This vulnerability involves an improper initialization of `ImagePath.Path` in `path_getbbox` within Pillow before version 9.0.0. The lack of proper initialization can lead to unpredictable behavior and potentially exploitable conditions. Exploitation may require crafted input and could enable information disclosure or denial of service.
Affected Software
Technical Details
The vulnerability arises from the path_getbbox function in path.c not correctly initializing ImagePath.Path objects. Improper initialization means that certain data structures or variables within the path object may retain stale or undefined values instead of being set to a known secure state upon creation. An attacker could craft an image file or a sequence of operations that relies on these uninitialized values. Depending on the memory layout and contents at the time of access, this could lead to information leaks, unexpected program behavior, or crashes, potentially enabling denial-of-service conditions or providing valuable memory addresses for further exploitation.
What is the Impact of CVE-2022-22815?
Successful exploitation may allow attackers to cause unpredictable application behavior, leading to a denial of service or potentially information disclosure, due to reliance on uninitialized data structures.
What is the Exploitability of CVE-2022-22815?
Exploitation would likely involve submitting a specially crafted image file or sequence of image processing operations. The complexity level is moderate, as it requires an understanding of how Path objects are created and used within Pillow's internals, and how uninitialized memory might be leveraged. No specific authentication or privilege is typically needed, making it a remote attack if the application processes untrusted input. The lack of proper initialization creates a reliance on the existing memory state, which could be influenced or read by an attacker. The primary risk factor is the processing of untrusted image files, where malformed data could trigger the improper initialization.
What are the Known Public Exploits?
| PoC Author | Link | Commentary |
|---|---|---|
| No known exploits | ||
What are the Available Fixes for CVE-2022-22815?
Available Upgrade Options
- pillow
- <9.0.0 → Upgrade to 9.0.0
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Book a demoAdditional Resources
- https://github.com/python-pillow/Pillow/commit/c48271ab354db49cdbd740bc45e13be4f0f7993c
- https://github.com/python-pillow/Pillow/blob/c5d9223a8b5e9295d15b5a9b1ef1dae44c8499f3/src/path.c#L331
- https://github.com/python-pillow/Pillow/blob/c5d9223a8b5e9295d15b5a9b1ef1dae44c8499f3/src/path.c#L331
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2022-8.yaml
- https://lists.debian.org/debian-lts-announce/2022/01/msg00018.html
- https://github.com/python-pillow/Pillow/blob/e8ab5640774716c5486d3cb05167f74f742ad6ef/CHANGES.rst?plain=1#L1187
- https://nvd.nist.gov/vuln/detail/CVE-2022-22815
- https://github.com/advisories/GHSA-pw3c-h7wp-cvhx
- https://github.com/python-pillow/Pillow/commit/1e092419b6806495c683043ab3feb6ce264f3b9c
- https://www.debian.org/security/2022/dsa-5053
What are Similar Vulnerabilities to CVE-2022-22815?
Similar Vulnerabilities: CVE-2017-1000100 , CVE-2019-14493 , CVE-2021-39213 , CVE-2020-13936 , CVE-2021-3560
