PT-2021-4567

CVE-2021-28676

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Published

2021-03-18

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Updated

2026-03-31

Description by

CVSS 3.1
9.1
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Name of the Vulnerable Software and Affected Versions Pillow versions prior to 8.2.0
Description An issue was discovered in the FliDecode component of the Pillow image processing library, related to incorrect checking of non-zero block advance for FLI data. This could potentially lead to an infinite loop when loading data. The issue may allow a remote attacker to cause a denial of service.
Recommendations For versions prior to 8.2.0, update to version 8.2.0 or later to resolve the issue. As a temporary workaround, consider avoiding the use of FLI data with the FliDecode component until a patch is applied.
Exploitability
Fix
Impacts
Vendors
Affected products
Related identifiers
GHSA-7R7M-5H27-29HP
ALSA-2021:4149
ALT-PU-2021-2460
ALT-PU-2023-7942
ALT-PU-2023-8182
BIT-PILLOW-2021-28676
CESA-2021_4149
DLA-2716-1
MGASA-2021-0389
OPENSUSE-SU-2024_1607-1
PYSEC-2021-92
RHSA-2021:4149
RHSA-2021_4149
RLSA-2021:4149
SUSE-SU-2021:1938-1
SUSE-SU-2021:1939-1
SUSE-SU-2021:1940-1
SUSE-SU-2024:1607-1
USN-4963-1
USN-8135-1
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