yasm 1.3.0 nasm-pp.c expand_mmac_params null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in yasm 1.3.0. The affected element is the function expand_mmac_params of the file modules/preprocs/nasm/nasm-pp.c. The manipulation results in null pointer dereference. This vulnerability was named CVE-2021-33457. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in yasm 1.3.0. Affected is the function expand_mmac_params of the file modules/preprocs/nasm/nasm-pp.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.c.

The weakness was presented 07/26/2022 as 171. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-33457 since 05/20/2021. There are known technical details, 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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

05/20/2021 🔍
07/26/2022 +432 days 🔍
07/26/2022 +0 days 🔍
07/26/2022 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: 171
Status: Confirmed

CVE: CVE-2021-33457 (🔍)
GCVE (CVE): GCVE-0-2021-33457
GCVE (VulDB): GCVE-100-205068

Entryinfo

Created: 07/26/2022 18:52
Changes: 07/26/2022 18:52 (39)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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