CVE & CISA-KEV Catalog

CVE-2020-36646

LOW
3.5
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
libzenDebian
Fixed in:0.4.38-1+deb11u1CVE-2020-36646
Fixed in:0.4.39-1CVE-2020-36646
Fixed in:0.4.39-1CVE-2020-36646
Fixed in:0.4.39-1CVE-2020-36646
libzenUbuntu
Fixed in:0.4.29-1ubuntu0.1~esm1USN-6048-1
Fixed in:0.4.32-1ubuntu0.16.04.1+esm1USN-6048-1
Fixed in:0.4.37-1ubuntu0.18.04.1USN-6048-1
Fixed in:0.4.37-1ubuntu0.20.04.1USN-6048-1
libzen-devUbuntu
Fixed in:0.4.29-1ubuntu0.1~esm1USN-6048-1
Fixed in:0.4.32-1ubuntu0.16.04.1+esm1USN-6048-1
Fixed in:0.4.37-1ubuntu0.18.04.1USN-6048-1
Fixed in:0.4.37-1ubuntu0.20.04.1USN-6048-1
libzen0Ubuntu
Fixed in:0.4.29-1ubuntu0.1~esm1USN-6048-1
libzen0v5Ubuntu
Fixed in:0.4.32-1ubuntu0.16.04.1+esm1USN-6048-1
Fixed in:0.4.37-1ubuntu0.18.04.1USN-6048-1
Fixed in:0.4.37-1ubuntu0.20.04.1USN-6048-1

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

1.18%probability of exploitation in 30 days
65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Third-Party Advisory2
Release Notes1

Related Vulnerabilities

Other CWE-690 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-6095High7.52.9%-Fix
CVE-2020-13582High7.52.6%--
CVE-2022-20682High8.61.3%--
CVE-2020-1648High7.51.3%--
CVE-2022-41957High7.51.0%-Fix
CVE-2022-39381High7.50.7%-Fix

Common questions

How do I fix CVE-2020-36646?

Published advisories record a fix for 5 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2020-36646 being actively exploited?

Not that we know of. CVE-2020-36646 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 65% of all scored CVEs.

How severe is CVE-2020-36646?

CVE-2020-36646 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-36646 affect?

Published advisories record a fix for libzen (Debian), libzen (Ubuntu), libzen-dev (Ubuntu), libzen0 (Ubuntu), and 1 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.