Netwide Assembler 2.14rc16 asm/preproc.c expand_mmac_params out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Netwide Assembler 2.14rc16. This issue affects the function expand_mmac_params of the file asm/preproc.c. Such manipulation leads to out-of-bounds. This vulnerability is referenced as CVE-2018-19215. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in Netwide Assembler 2.14rc16 (Programming Tool Software) and classified as critical. Affected by this issue is the function expand_mmac_params of the file asm/preproc.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Netwide Assembler (NASM) 2.14rc16 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c for the special cases of the % and $ and ! characters.

The bug was discovered 10/29/2018. The weakness was published 11/12/2018 (Website). The advisory is shared for download at bugzilla.nasm.us. This vulnerability is handled as CVE-2018-19215 since 11/12/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 14 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.

Similar entries are available at VDB-126681, VDB-126679 and VDB-126678. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Out-of-bounds
CWE: CWE-125 / CWE-119
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

10/29/2018 🔍
11/12/2018 +14 days 🔍
11/12/2018 +0 days 🔍
11/12/2018 +0 days 🔍
11/13/2018 +1 days 🔍
06/05/2023 +1665 days 🔍

Sourcesinfo

Advisory: 4b5b737d4991578b1918303dc0fd9c9ab5c7ce4f
Status: Not defined

CVE: CVE-2018-19215 (🔍)
GCVE (CVE): GCVE-0-2018-19215
GCVE (VulDB): GCVE-100-126680
See also: 🔍

Entryinfo

Created: 11/13/2018 08:08
Updated: 06/05/2023 16:25
Changes: 11/13/2018 08:08 (58), 04/11/2020 18:30 (1), 06/05/2023 16:25 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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