libyal libexe prior 20181128 libexe_io_handle_read_coff_optional_header heap-based overflow ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability was found in libyal libexe. It has been classified as critical. This issue affects the function libexe_io_handle_read_coff_optional_header. This manipulation causes heap-based overflow. This vulnerability is tracked as CVE-2020-18900. No exploit exists. There is ongoing doubt regarding the real existence of this vulnerability. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in libyal libexe. Affected by this vulnerability is the function libexe_io_handle_read_coff_optional_header. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A heap-based buffer overflow in the libexe_io_handle_read_coff_optional_header function of libyal libexe before 20181128. NOTE: the vendor has disputed this as described in libyal/libexe issue 1 on GitHub

The weakness was disclosed 08/20/2021. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-18900. Technical details of the vulnerability are known, but there is no available exploit.

The real existence of this vulnerability is still doubted at the moment.

Upgrading to version 20181128 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CNA Base Score: 3.3
CNA 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: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: libexe 20181128

Timelineinfo

11/28/2018 🔍
08/13/2020 +623 days 🔍
08/20/2021 +372 days 🔍
08/20/2021 +0 days 🔍
08/04/2024 +1080 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Disputed: 🔍

CVE: CVE-2020-18900 (🔍)
GCVE (CVE): GCVE-0-2020-18900
GCVE (VulDB): GCVE-100-181207

Entryinfo

Created: 08/20/2021 07:20
Updated: 08/04/2024 20:19
Changes: 08/20/2021 07:20 (38), 08/25/2021 09:20 (2), 06/05/2024 11:36 (33), 06/05/2024 13:24 (3), 08/04/2024 20:19 (13)
Complete: 🔍
Cache ID: 216::103

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