Is CVE-2020-17525 in the CISA KEV catalog?

No. CVE-2020-17525 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-17525?

CVE-2020-17525 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-17525?

CVE-2020-17525 has an EPSS score of 40.08% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-17525?

Upgrade subversion on debian 11 to 1.14.1-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2020-17525

HIGHEPSS 98th pctl

7.5

CVSS v3

NVD

Description

Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

subversionDebian

Fixed in:1.14.1-1CVE-2020-17525

libapache2-mod-svnUbuntu

Fixed in:1.9.3-2ubuntu1.3+esm1USN-5322-1

Fixed in:1.9.7-4ubuntu1.1USN-5445-1

Fixed in:1.13.0-3ubuntu0.2USN-5445-1

libapache2-svnUbuntu

Fixed in:1.9.3-2ubuntu1.3+esm1USN-5322-1

libsvn1Ubuntu

Fixed in:1.9.3-2ubuntu1.3+esm1USN-5322-1

Fixed in:1.9.7-4ubuntu1.1USN-5445-1

Fixed in:1.13.0-3ubuntu0.2USN-5445-1

subversionUbuntu

Fixed in:1.9.3-2ubuntu1.3+esm1USN-5322-1

Fixed in:1.9.7-4ubuntu1.1USN-5445-1

Fixed in:1.13.0-3ubuntu0.2USN-5445-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

40.08%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Patch1

subversion.apache.org

Third-Party Advisory1

lists.debian.org

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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.