Netwide Assembler 2.14rc16 Array Access asm/preproc.c input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Netwide Assembler 2.14rc16 and classified as problematic. This impacts an unknown function of the file asm/preproc.c of the component Array Access. Such manipulation leads to input validation. This vulnerability is traded as CVE-2018-19755. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Netwide Assembler 2.14rc16 (Programming Tool Software). Affected by this issue is an unknown code of the file asm/preproc.c of the component Array Access. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can result in a negative integer.

The bug was discovered 11/13/2018. The weakness was shared 11/30/2018 (Website). The advisory is available at bugzilla.nasm.us. This vulnerability is handled as CVE-2018-19755 since 11/29/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

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

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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: 🔍

Patch: repo.or.cz

Timelineinfo

11/13/2018 🔍
11/29/2018 +16 days 🔍
11/29/2018 +0 days 🔍
11/30/2018 +1 days 🔍
11/30/2018 +0 days 🔍
06/12/2023 +1655 days 🔍

Sourcesinfo

Advisory: 3079f7966dbed4497e36d5067cbfd896a90358cb
Status: Not defined

CVE: CVE-2018-19755 (🔍)
GCVE (CVE): GCVE-0-2018-19755
GCVE (VulDB): GCVE-100-127334

Entryinfo

Created: 11/30/2018 15:25
Updated: 06/12/2023 11:26
Changes: 11/30/2018 15:25 (57), 04/16/2020 12:29 (1), 06/12/2023 11:26 (4)
Complete: 🔍
Cache ID: 216::103

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