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CVE-2025-58183 - Unbounded allocation when parsing GNU sparse map in archive/tar

CVE ID : CVE-2025-58183
Published : Oct. 29, 2025, 11:16 p.m. | 1 hour, 17 minutes ago
Description : tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions can cause a Reader to read an unbounded amount of data from the archive into memory. When reading from a compressed source, a small compressed input can result in large allocations.
Severity: 0.0 | NA
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