CVE-2020-36646 : A vulnerability classified as problematic has been found in MediaArea ZenLib up

A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.

Published 2023-01-07 20:15:10

Updated 2024-05-17 01:48:54

Source VulDB

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2020-36646

Mediaarea » Zenlib
Versions from including (>=) 0.4.0 and before (<) 0.4.39
cpe:2.3:a:mediaarea:zenlib:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-36646

EPSS FAQ

0.61%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 78 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-36646

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.3	LOW	AV:A/AC:M/Au:S/C:N/I:N/A:P	4.4	2.9	VulDB
Access Vector: Adjacent Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
3.5	LOW	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	2.1	1.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
3.5	LOW	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	2.1	1.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2020-36646

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)
CWE-690 Unchecked Return Value to NULL Pointer Dereference

The product does not check for an error after calling a function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference.

Assigned by: cna@vuldb.com (Secondary)

References for CVE-2020-36646

https://github.com/MediaArea/ZenLib/pull/119

fix V522 There might be dereferencing of a potential null pointer 'Gmt' by pavel-pimenov · Pull Request #119 · MediaArea/ZenLib · GitHub
Patch
https://vuldb.com/?id.217629

Third Party Advisory;VDB Entry
https://github.com/MediaArea/ZenLib/releases/tag/v0.4.39

Release v0.4.39 · MediaArea/ZenLib · GitHub
Release Notes
https://vuldb.com/?ctiid.217629

Third Party Advisory;VDB Entry
https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408

fix V522 [CWE-690] There might be dereferencing of a potential null p… · MediaArea/ZenLib@6475fcc · GitHub
Patch

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Vulnerability Details : CVE-2020-36646

Products affected by CVE-2020-36646

Exploit prediction scoring system (EPSS) score for CVE-2020-36646

CVSS scores for CVE-2020-36646

CWE ids for CVE-2020-36646

References for CVE-2020-36646