CRITICAL 9.8 PyPI
Arbitrary expression injection in Pillow
GHSA-8vj2-vxx3-667w · BIT-pillow-2022-22817 · CVE-2022-22817 · PYSEC-2022-10
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Description
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.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-22817
- WEB https://github.com/python-pillow/Pillow/commit/8531b01d6cdf0b70f256f93092caa2a5d91afc11
- ADVISORY https://github.com/advisories/GHSA-8vj2-vxx3-667w
- WEB https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2022-10.yaml
- PACKAGE https://github.com/python-pillow/Pillow
- WEB https://lists.debian.org/debian-lts-announce/2022/01/msg00018.html
- WEB https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
- WEB https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html#restrict-builtins-available-to-imagemath-eval
- WEB https://pillow.readthedocs.io/en/stable/releasenotes/9.0.1.html#security
- WEB https://security.gentoo.org/glsa/202211-10
- WEB https://www.debian.org/security/2022/dsa-5053
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