BoringSSL through 2018-06-14 allows a memory-cache side-channel attack on DSA signatures…
Priority LOW 21CWE-200Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
BoringSSL through 2018-06-14 allows a memory-cache side-channel attack on DSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a DSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Why it matters now
EPSS 0.00136 3rd percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Fuse 7 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Mobile Application Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2018-12440
- 2026-10-03 Alias added: GHSA-mwrj-3qqh-xprh
References
Sources
- CVE-2018-12440 · CVE Program
- CVE-2018-12440 · NVD
- FIRST EPSS
- GHSA-mwrj-3qqh-xprh · GitHub Advisory Database · CC BY 4.0
- CVE-2018-12440 · Red Hat security data · CC BY 4.0
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