yasm 1.3.0 /nasm/nasm-pp.c pp_getline use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in yasm 1.3.0. It has been classified as critical. Affected by this vulnerability is the function pp_getline of the file /nasm/nasm-pp.c. This manipulation causes use after free. This vulnerability is registered as CVE-2023-31972. No exploit is available.

Detailsinfo

A vulnerability has been found in yasm 1.3.0 and classified as critical. Affected by this vulnerability is the function pp_getline of the file /nasm/nasm-pp.c. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

yasm v1.3.0 was discovered to contain a use after free via the function pp_getline at /nasm/nasm-pp.c.

The weakness was published 05/09/2023 as 209. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-31972 since 04/29/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 257940 (Linux Distros Unpatched Vulnerability : CVE-2023-31972), which helps to determine the existence of the flaw in a target environment.

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 databases at Tenable (257940) and EUVD (EUVD-2023-36261). Be aware that VulDB is the high quality source for vulnerability data.

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: 🔍

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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Nessus ID: 257940
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-31972

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/29/2023 🔍
05/09/2023 +10 days 🔍
05/09/2023 +0 days 🔍
12/30/2025 +966 days 🔍

Sourcesinfo

Product: github.com

Advisory: 209
Status: Confirmed

CVE: CVE-2023-31972 (🔍)
GCVE (CVE): GCVE-0-2023-31972
GCVE (VulDB): GCVE-100-228415
EUVD: 🔍

Entryinfo

Created: 05/09/2023 16:13
Updated: 12/30/2025 01:23
Changes: 05/09/2023 16:13 (38), 06/01/2023 08:36 (11), 08/02/2024 17:54 (17), 08/30/2025 09:41 (3), 12/30/2025 01:23 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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