critical9.8
CVE-2022-22817
Arbitrary expression injection in Pillow
Impact
`PIL.ImageMath.eval` in Pillow before 9.0.0 allows evaluation of arbitrary expressions, such as ones that use the Python exec method `ImageMath.eval("exec(exit())")`. While Pillow 9.0.0 restricted top-level builtins available to PIL.ImageMath.eval(), it did not prevent builtins available to lambda expressions. These are now also restricted in 9.0.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | Pillow | < 9.0.1 | 9.0.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Python | Pillow | before 9.0.1 |
| Debian | Debian Linux | Versions 9.0, 10.0, 11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00018.html
- https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
- https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html#restrict-builtins-available-to-imagemath-eval
- https://pillow.readthedocs.io/en/stable/releasenotes/9.0.1.html#security
- https://security.gentoo.org/glsa/202211-10
- https://www.debian.org/security/2022/dsa-5053
- https://github.com/advisories/GHSA-8vj2-vxx3-667w
- https://nvd.nist.gov/vuln/detail/CVE-2022-22817
- https://github.com/python-pillow/Pillow/commit/8531b01d6cdf0b70f256f93092caa2a5d91afc11
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2022-10.yaml