Netwide Assembler up to 2.13.01 asm/preproc.c detoken use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Netwide Assembler up to 2.13.01. Impacted is the function detoken of the file asm/preproc.c. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2018-19216. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Netwide Assembler up to 2.13.01 (Programming Tool Software). It has been classified as critical. This affects the function detoken of the file asm/preproc.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Netwide Assembler (NASM) before 2.13.02 has a use-after-free in detoken at asm/preproc.c.

The bug was discovered 11/25/2017. The weakness was released 11/12/2018 (Website). The advisory is shared at bugzilla.nasm.us. This vulnerability is uniquely identified as CVE-2018-19216 since 11/12/2018. 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 are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 352 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.13.02 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-126680, VDB-126679 and VDB-126678. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Use after free
CWE: CWE-416 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Netwide Assembler 2.13.02
Patch: repo.or.cz

Timelineinfo

11/25/2017 🔍
11/12/2018 +352 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-2018-19216 (🔍)
GCVE (CVE): GCVE-0-2018-19216
GCVE (VulDB): GCVE-100-126681
See also: 🔍

Entryinfo

Created: 11/13/2018 08:09
Updated: 06/05/2023 16:33
Changes: 11/13/2018 08:09 (60), 04/11/2020 18:36 (1), 06/05/2023 16:33 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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