Minicom up to 2.7.0 VT100 Escape Sequence memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Minicom up to 2.7.0. This vulnerability affects unknown code of the component VT100 Escape Sequence Handler. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2017-7467. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Minicom up to 2.7.0. Affected by this issue is an unknown code block of the component VT100 Escape Sequence Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A buffer overflow flaw was found in the way minicom before version 2.7.1 handled VT100 escape sequences. A malicious terminal device could potentially use this flaw to crash minicom, or execute arbitrary code in the context of the minicom process.

The bug was discovered 04/18/2017. The weakness was disclosed 07/11/2018 by Alex (oss-sec). The advisory is available at openwall.com. This vulnerability is handled as CVE-2017-7467 since 04/05/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 120 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102563 (openSUSE Security Update : minicom (openSUSE-2017-947)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169869 (SUSE Enterprise Linux Security Update for minicom (SUSE-SU-2017:1092-1)).

Upgrading to version 2.7.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102563) and SecurityFocus (BID 97966†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 7.0
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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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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Nessus ID: 102563
Nessus Name: openSUSE Security Update : minicom (openSUSE-2017-947)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865474
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 914-1] minicom security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Minicom 2.7.1

Timelineinfo

04/05/2017 🔍
04/18/2017 +13 days 🔍
04/18/2017 +0 days 🔍
08/16/2017 +120 days 🔍
08/18/2017 +2 days 🔍
07/11/2018 +326 days 🔍
07/11/2018 +0 days 🔍
07/12/2018 +1 days 🔍
04/06/2023 +1729 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Alex
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7467 (🔍)
GCVE (CVE): GCVE-0-2017-7467
GCVE (VulDB): GCVE-100-121322
SecurityFocus: 97966 - Minicom CVE-2017-7467 Local Buffer Overflow Vulnerability

Entryinfo

Created: 07/12/2018 09:54
Updated: 04/06/2023 16:38
Changes: 07/12/2018 09:54 (74), 03/04/2020 08:55 (4), 04/06/2023 16:38 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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