Is CVE-2020-27824 in the CISA KEV catalog?

No. CVE-2020-27824 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27824?

CVE-2020-27824 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-27824?

CVE-2020-27824 has an EPSS score of 1.61% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27824?

Upgrade openjpeg2 on debian 11 to 2.4.0-1 or later. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2020-27824

MEDIUMEPSS 73th pctl

5.5

CVSS v3

NVD

Description

A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.

CWE-20Improper Input Validation CWE-125Out-of-bounds Read

How to fix

Remediation Available

openjpeg2Debian

Fixed in:2.4.0-1CVE-2020-27824

ghostscriptUbuntu

Fixed in:9.26~dfsg+0-0ubuntu0.16.04.14USN-4686-1

Fixed in:9.26~dfsg+0-0ubuntu0.18.04.14USN-4686-1

libgs9Ubuntu

Fixed in:9.26~dfsg+0-0ubuntu0.16.04.14USN-4686-1

Fixed in:9.26~dfsg+0-0ubuntu0.18.04.14USN-4686-1

libopenjp2-7Ubuntu

Fixed in:2.1.2-1.1+deb9u6build0.16.04.1USN-4880-1

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

Fixed in:2.3.1-1ubuntu4.20.04.1USN-4685-1

libopenjp3d7Ubuntu

Fixed in:2.1.2-1.1+deb9u6build0.16.04.1USN-4880-1

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

Fixed in:2.3.1-1ubuntu4.20.04.1USN-4685-1

libopenjpip7Ubuntu

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.1.2-1.1+deb9u6build0.16.04.1USN-4880-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

Fixed in:2.3.1-1ubuntu4.20.04.1USN-4685-1

openjpegUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

openjpeg-toolsUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

openjpeg2Ubuntu

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.1.2-1.1+deb9u6build0.16.04.1USN-4880-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

Fixed in:2.3.1-1ubuntu4.20.04.1USN-4685-1

openjpip-dec-serverUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

openjpip-serverUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

openjpip-viewerUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

openjpip-viewer-xercesUbuntu

Fixed in:1:1.5.2-3.1ubuntu0.1~esm2USN-5664-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.61%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Patch2

Third-Party Advisory2

Other references2

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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.