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TI-2023-18209 Aliases CVE-2023-36326GHSA-fr5q-2jxw-x8hg

Integer Overflow vulnerability in RELIC before commit…

Priority MEDIUM 50CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

Integer Overflow vulnerability in RELIC before commit 34580d840469361ba9b5f001361cad659687b9ab, allows attackers to execute arbitrary code, cause a denial of service, and escalate privileges when calling realloc function in bn_grow function.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00857 58th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:relic_project:relic:*:*:*:*:*:*:*:*before 2022-11-14VulnerableRelic Project
  • cpe:2.3:a:relic_project:relic:*:*:*:*:*:*:*:* Versions before 2022-11-14 Vulnerable ·Relic Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36326
  2. 2026-10-03 Alias added: GHSA-fr5q-2jxw-x8hg

References

  • TI-2023-18210 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-2020-18599 In RELIC before 2021-04-03, there is a buffer overflow in PKCS#1 v1.5 signature… CVSS 3.1MEDIUM 5.5
  • 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