Is CVE-2023-27476 in the CISA KEV catalog?

No. CVE-2023-27476 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-27476?

CVE-2023-27476 has a CVSS v3 base score of 8.2 (HIGH).

What is the EPSS score for CVE-2023-27476?

CVE-2023-27476 has an EPSS score of 0.98% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-27476?

Upgrade owslib on debian 11 to 0.23.0-1+deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-27476

HIGH

8.2

CVSS v3

NVD

Description

OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details.

CWE-611XML External Entity (XXE)

How to fix

Remediation Available

owslibDebian

Fixed in:0.23.0-1+deb11u1CVE-2023-27476

Fixed in:0.27.2-3CVE-2023-27476

owslibUbuntu

Fixed in:0.10.3-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.16.0-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.19.1-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.25.0-1ubuntu0.1~esm1USN-8247-1

python-owslibUbuntu

Fixed in:0.10.3-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.16.0-1ubuntu0.1~esm1USN-8247-1

python3-owslibUbuntu

Fixed in:0.10.3-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.16.0-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.19.1-1ubuntu0.1~esm1USN-8247-1

Fixed in:0.25.0-1ubuntu0.1~esm1USN-8247-1

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

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.98%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Other references3

Related Vulnerabilities

Other CWE-611 (XML External Entity (XXE)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-34102	Critical	9.8	100%	KEV	Fix
CVE-2019-9670	Critical	9.8	100%	KEV	Fix
CVE-2022-28219	Critical	9.8	97%	-	-
CVE-2024-22024	High	8.3	95%	-	-
CVE-2024-38653	High	7.5	92%	-	-
CVE-2017-12629	Critical	9.8	92%	-	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.