An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-28676US | high7.5 | — | ||
An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load. | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856FIX
- https://github.com/python-pillow/Pillow/pull/5377ADVISORY
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlADVISORY
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/DISCUSSION
- https://nvd.nist.gov/vuln/detail/CVE-2021-28676WEB
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dosADVISORY
- https://security.gentoo.org/glsa/202107-33ADVISORY
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