Is CVE-2020-27770 in the CISA KEV catalog?

No. CVE-2020-27770 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27770?

CVE-2020-27770 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-27770?

CVE-2020-27770 has an EPSS score of 1.13% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27770?

Upgrade imagemagick on debian 11 to 8:6.9.11.24+dfsg-1 or later. Fixes are available for 31 affected products.

CVE & CISA-KEV Catalog

CVE-2020-27770

MEDIUM

5.5

CVSS v3

NVD

Description

Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.

CWE-190Integer Overflow

How to fix

Remediation Available

imagemagickDebian

Fixed in:8:6.9.11.24+dfsg-1CVE-2020-27770

imagemagickUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.9.7.4+dfsg-16ubuntu6.11USN-4988-1

Fixed in:8:6.9.10.23+dfsg-2.1ubuntu11.4USN-4988-1

imagemagick-6.q16Ubuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.9.7.4+dfsg-16ubuntu6.11USN-4988-1

Fixed in:8:6.9.10.23+dfsg-2.1ubuntu11.4USN-4988-1

imagemagick-commonUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libimage-magick-perlUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libimage-magick-q16-perlUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

libmagick++-6.q16-5v5Ubuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

libmagick++-6.q16-7Ubuntu

Fixed in:8:6.9.7.4+dfsg-16ubuntu6.11USN-4988-1

libmagick++-6.q16-8Ubuntu

Fixed in:8:6.9.10.23+dfsg-2.1ubuntu11.4USN-4988-1

libmagick++-6.q16-devUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagick++-devUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

libmagick++5Ubuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

libmagickcore-6-arch-configUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagickcore-6-headersUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

libmagickcore-6.q16-2Ubuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagickcore-6.q16-2-extraUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

libmagickcore-6.q16-3Ubuntu

Fixed in:8:6.9.7.4+dfsg-16ubuntu6.11USN-4988-1

libmagickcore-6.q16-3-extraUbuntu

Fixed in:8:6.9.7.4+dfsg-16ubuntu6.11USN-4988-1

libmagickcore-6.q16-6Ubuntu

Fixed in:8:6.9.10.23+dfsg-2.1ubuntu11.4USN-4988-1

libmagickcore-6.q16-6-extraUbuntu

Fixed in:8:6.9.10.23+dfsg-2.1ubuntu11.4USN-4988-1

libmagickcore-6.q16-devUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

libmagickcore-devUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagickcore5Ubuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

libmagickcore5-extraUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

libmagickwand-6.q16-2Ubuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagickwand-6.q16-devUbuntu

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

libmagickwand-devUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

libmagickwand5Ubuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

perlmagickUbuntu

Fixed in:8:6.7.7.10-6ubuntu3.13+esm11USN-7068-1

Fixed in:8:6.8.9.9-7ubuntu5.16+esm2USN-5335-1

ImageMagick Q16Windows application

Affected:7.0.0-0 7.0.8-68Fixed in:7.0.8-68ImageMagick Studio LLC

Affected:6.9.10-68Fixed in:6.9.10-68ImageMagick Studio LLC

ImageMagick Q16-HDRIWindows application

Affected:6.9.10-68Fixed in:6.9.10-68ImageMagick Studio LLC

Affected:7.0.0-0 7.0.8-68Fixed in:7.0.8-68ImageMagick Studio LLC

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

1.13%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory1

lists.debian.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	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.