Is CVE-2020-8244 in the CISA KEV catalog?

No. CVE-2020-8244 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8244?

CVE-2020-8244 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-8244?

CVE-2020-8244 has an EPSS score of 2.12% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8244?

Upgrade node-bl on debian 11 to 4.0.3-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-8244

MEDIUMEPSS 80th pctl

6.5

CVSS v3

NVD

Description

A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

CWE-126Buffer Over-read CWE-125Out-of-bounds Read

How to fix

Remediation Available

node-blDebian

Fixed in:4.0.3-1CVE-2020-8244

node-blUbuntu

Fixed in:0.9.3-1ubuntu0.1~esm1USN-5159-1

Fixed in:1.1.2-1ubuntu1.1USN-5098-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

2.12%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Patch1

hackerone.com

Third-Party Advisory1

lists.debian.org

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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.