NASM Netwide Assembler 2.13.02rc2 asm/parser.c parse_line memory corruption

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-$5k0.03

A vulnerability was found in NASM Netwide Assembler 2.13.02rc2 (Programming Tool Software). It has been classified as critical. Affected is the function parse_line of the file asm/parser.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. CVE summarizes:

Netwide Assembler (NASM) 2.13.02rc2 has a buffer over-read in the parse_line function in asm/parser.c via uncontrolled access to nasm_reg_flags.

The bug was discovered 10/22/2017. The weakness was released 03/20/2018 (Website). The advisory is available at bugzilla.nasm.us. This vulnerability is traded as CVE-2018-8883 since 03/20/2018. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 149 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.

Entries connected to this vulnerability are available at 114845 and 114844.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

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

10/22/2017 🔍
03/20/2018 +149 days 🔍
03/20/2018 +0 days 🔍
03/20/2018 +0 days 🔍
03/21/2018 +1 days 🔍
01/15/2020 +665 days 🔍

Sourcesinfo

Advisory: bugzilla.nasm.us
Status: Not defined

CVE: CVE-2018-8883 (🔍)
See also: 🔍

Entryinfo

Created: 03/21/2018 09:17
Updated: 01/15/2020 13:30
Changes: 03/21/2018 09:17 (59), 01/15/2020 13:30 (1)
Complete: 🔍

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