yasm 1.3.0.55.g101bc nasm-pp.c expand_mmac_params use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in yasm 1.3.0.55.g101bc. It has been classified as critical. The impacted element is the function expand_mmac_params of the file yasm/modules/preprocs/nasm/nasm-pp.c. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2023-31725. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in yasm 1.3.0.55.g101bc. This affects the function expand_mmac_params of the file yasm/modules/preprocs/nasm/nasm-pp.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

yasm 1.3.0.55.g101bc was discovered to contain a heap-use-after-free via the function expand_mmac_params at yasm/modules/preprocs/nasm/nasm-pp.c.

The weakness was shared 05/17/2023 as 221. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2023-31725 since 04/29/2023. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-36016). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/29/2023 🔍
05/17/2023 +18 days 🔍
05/17/2023 +0 days 🔍
12/28/2025 +956 days 🔍

Sourcesinfo

Product: github.com

Advisory: 221
Status: Confirmed

CVE: CVE-2023-31725 (🔍)
GCVE (CVE): GCVE-0-2023-31725
GCVE (VulDB): GCVE-100-229269
EUVD: 🔍

Entryinfo

Created: 05/17/2023 18:05
Updated: 12/28/2025 04:42
Changes: 05/17/2023 18:05 (38), 01/22/2025 18:55 (33), 12/28/2025 04:42 (1)
Complete: 🔍
Cache ID: 216::103

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