Netwide Assembler 2.14rc16 crc64.c crc64ib memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Netwide Assembler 2.14rc16. This issue affects the function crc64ib of the file crc64.c. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2019-7147. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in Netwide Assembler 2.14rc16 (Programming Tool Software). It has been classified as critical. This affects the function crc64ib of the file crc64.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.

The bug was discovered 01/11/2019. The weakness was shared 01/29/2019 (Website). It is possible to read the advisory at bugzilla.nasm.us. This vulnerability is uniquely identified as CVE-2019-7147 since 01/28/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 17 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: Memory corruption
CWE: 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: 🔍

Timelineinfo

01/11/2019 🔍
01/28/2019 +17 days 🔍
01/28/2019 +0 days 🔍
01/29/2019 +1 days 🔍
01/29/2019 +0 days 🔍
05/06/2020 +463 days 🔍

Sourcesinfo

Advisory: bugzilla.nasm.us
Status: Not defined

CVE: CVE-2019-7147 (🔍)
GCVE (CVE): GCVE-0-2019-7147
GCVE (VulDB): GCVE-100-130299

Entryinfo

Created: 01/29/2019 10:22
Updated: 05/06/2020 15:40
Changes: 01/29/2019 10:22 (57), 05/06/2020 15:40 (1)
Complete: 🔍
Cache ID: 216::103

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