GOSTCTR implementation unable to process more than 255 blocks correctly
Summary
GOSTCTR implementation unable to process more than 255 blocks correctly. Red Hat rates this important (CVSS 7.5). Weakness: CWE-327. Affected package(s): bcprov-jdk15to18, eap8-bouncycastle, devspaces/openvsx-rhel9:1779528224, bcprov-ext-jdk15on, bcprov-ext-jdk18on, devspaces/pluginregistry-rhel9:1779359423. Resolved in Red Hat advisory RHSA-2026:14276 — update the affected packages (`sudo dnf update`).
- bcprov-jdk15to18
- eap8-bouncycastle-0:1.84.0-1.redhat_00001.1.el8eap
- eap8-bouncycastle-0:1.84.0-1.redhat_00001.1.el9eap
- devspaces/openvsx-rhel9:1779528224
- bcprov-ext-jdk15on
- bcprov-ext-jdk18on
- devspaces/pluginregistry-rhel9:1779359423
- bcprov-jdk15
- bcprov-jdk12
- bcprov-debug-jdk15on
- bcprov-jdk18on
- bcprov-jdk15on
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- RHSA-2026:14276
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:14276 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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