In RELIC before 2021-04-03, there is a buffer overflow in PKCS#1 v1.5 signature…
Priority LOW 27CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
In RELIC before 2021-04-03, there is a buffer overflow in PKCS#1 v1.5 signature verification because garbage bytes can be present.
Why it matters now
EPSS 0.01159 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:relic_project:relic:*:*:*:*:*:*:*:* | before 2021-04-03 | Vulnerable | Relic Project |
- cpe:2.3:a:relic_project:relic:*:*:*:*:*:*:*:* Versions before 2021-04-03 Vulnerable ·Relic Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36316
- 2026-10-03 Alias added: GHSA-f5m2-hpp5-7qp7
References
More Relic Project Relic vulnerabilities
- TI-2023-18210 Integer Overflow vulnerability in RELIC before commit… CVSS 3.1CRITICAL 9.8
- TI-2023-18209 Integer Overflow vulnerability in RELIC before commit… CVSS 3.1CRITICAL 9.8
- TI-2023-28460 An issue in the cp_bbs_sig function in relic/src/cp/relic_cp_bbs.c of Relic relic-toolkit… CVSS 3.1HIGH 8.8
- TI-2020-18598 In RELIC before 2020-08-01, RSA PKCS#1 v1.5 signature forgery can occur because certain… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2020-36316 · CVE Program
- CVE-2020-36316 · NVD
- FIRST EPSS
- GHSA-f5m2-hpp5-7qp7 · GitHub Advisory Database · CC BY 4.0
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