yasm 1.3.0 nasm-parse.c nasm_parser_directive null pointer dereference

HistoryDiffrelatejsonxmlCTI

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4.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in yasm 1.3.0. This affects the function nasm_parser_directive of the file modules/parsers/nasm/nasm-parse.c. Such manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2021-33459. No exploit is available.

Detailsinfo

A vulnerability was found in yasm 1.3.0 and classified as problematic. Affected by this issue is the function nasm_parser_directive of the file modules/parsers/nasm/nasm-parse.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-parse.c.

The weakness was published 07/26/2022 as 167. The advisory is available at github.com. This vulnerability is handled as CVE-2021-33459 since 05/20/2021. Technical details are known, but there is no available exploit.

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

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Productinfo

Name

yasm

Version

1.3.0

License

open-source

Website

Product: https://github.com/yasm/yasm/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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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 🔍
08/27/2022 +32 days 🔍

Sourcesinfo

Product: github.com

Advisory: 167
Status: Confirmed

CVE: CVE-2021-33459 (🔍)
GCVE (CVE): GCVE-0-2021-33459
GCVE (VulDB): GCVE-100-205070

Entryinfo

Created: 07/26/2022 18:53
Updated: 08/27/2022 12:04
Changes: 07/26/2022 18:53 (39), 08/27/2022 12:04 (11)
Complete: 🔍
Cache ID: 216::103