Medium [CVE-2026-0966] Denial of Service via zero-length input in ssh_get_hexa()
This medium-severity Red Hat Linux advisory covers CVE-2026-0966 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Hardened Images.
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Summary
Denial of Service via zero-length input in ssh_get_hexa(). Red Hat rates this moderate (CVSS 6.5).
Weakness: CWE-124. Affected package(s): libssh, libssh-main.
Resolved in Red Hat advisory RHSA-2026:18160 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat Enterprise Linux 8; and 1 more.
- libssh-0:0.12.0-2.el10
- libssh-main-0.12.0-1.1.hum1
- libssh-0:0.10.4-18.el9
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:18160
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:18160 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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