VDB-238589 · CVE-2023-36327 · EUVD-2023-40295

RELIC bn_get_prime Pos integer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in RELIC. Affected is the function bn_get_prime. The manipulation of the argument Pos leads to integer overflow. This vulnerability is traded as CVE-2023-36327. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in RELIC (affected version unknown). It has been rated as problematic. This issue affects the function bn_get_prime. The manipulation of the argument pos with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Integer Overflow vulnerability in RELIC before commit 421f2e91cf2ba42473d4d54daf24e295679e290e, allows attackers to execute arbitrary code and cause a denial of service in pos argument in bn_get_prime function.

The weakness was shared 09/01/2023 as 421f2e91cf2ba42473d4d54daf24e295679e290e. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-36327 since 06/21/2023. Technical details are known, but no exploit is available.

Applying the patch 421f2e91cf2ba42473d4d54daf24e295679e290e is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-40295). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

RELIC

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 421f2e91cf2ba42473d4d54daf24e295679e290e

Timelineinfo

06/21/2023 🔍
09/01/2023 +72 days 🔍
09/01/2023 +0 days 🔍
01/13/2026 +865 days 🔍

Sourcesinfo

Advisory: 421f2e91cf2ba42473d4d54daf24e295679e290e
Status: Confirmed

CVE: CVE-2023-36327 (🔍)
GCVE (CVE): GCVE-0-2023-36327
GCVE (VulDB): GCVE-100-238589
EUVD: 🔍

Entryinfo

Created: 09/01/2023 21:30
Updated: 01/13/2026 19:05
Changes: 09/01/2023 21:30 (41), 09/29/2023 14:37 (11), 01/13/2026 19:05 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.