Is CVE-2020-15900 in the CISA KEV catalog?

No. CVE-2020-15900 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15900?

CVE-2020-15900 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-15900?

CVE-2020-15900 has an EPSS score of 5.19% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15900?

Upgrade ghostscript on debian 11 to 9.52.1~dfsg-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15900

CRITICALEPSS 91th pctl

9.8

CVSS v3

NVD

Description

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.

CWE-191 CWE-787Out-of-bounds Write

How to fix

Remediation Available

ghostscriptDebian

Fixed in:9.52.1~dfsg-1CVE-2020-15900

ghostscriptUbuntu

Fixed in:9.50~dfsg-5ubuntu4.1USN-4445-1

libgs9Ubuntu

Fixed in:9.50~dfsg-5ubuntu4.1USN-4445-1

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

5.19%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch2

Vendor Advisory1

artifex.com

Third-Party Advisory4

Other references2

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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.