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…r allocation On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow and potentially arbitrary code execution. Upstream: libarchive/libarchive@c3cb1c5
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This was referenced May 8, 2026
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Security Update
Vulnerability Details
On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow and potentially arbitrary code execution.
Changes
Upstream Fix
libarchive/libarchive@c3cb1c5
Testing