openrsync through 0.5.0, as used in OpenBSD through 7.8 and on other platforms, allows a client to cause a server SIGSEGV by specifying a length of zero for block data, because the relationship between p->rem and p->len is not checked.
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Score 5.3 from GitHub Security Advisory published 2025-12-15. NVD baseline CVSS 5.3; sources differ by 0.0.
openrsync through 0.5.0, as used in OpenBSD through 7.8 and on other platforms, allows a client to cause a server SIGSEGV by specifying a length of zero for block data, because the relationship between p->rem and p->len is not checked.
December 15, 2025
April 15, 2026
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CWE-1284