Medium [CVE-2026-88840] TLS ssl_server reads one byte out of bounds when parsing truncated ClientHello
This medium-severity Red Hat Linux advisory covers CVE-2026-88840.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
TLS ssl_server reads one byte out of bounds when parsing truncated ClientHello. Red Hat rates this moderate (CVSS 5.3).
Weakness: CWE-125.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
Mitigation checklist
- Do not use BusyBox ssl_server in production deployments. Upstream should add a bounds check to verify len > 0 before reading the compression-methods length byte.
Official advisory · high-confidence parse· fetched 10 days ago·verify at source
Discussion(0)
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