Is CVE-2023-2203 in the CISA KEV catalog?

No. CVE-2023-2203 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-2203?

CVE-2023-2203 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2023-2203?

CVE-2023-2203 has an EPSS score of 0.93% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-2203?

Upgrade webkit2gtk3 on rhel 8 to 0:2.38.5-1.el8_8.3 or later. Fixes are available for 18 affected products.

CVE & CISA-KEV Catalog

CVE-2023-2203

HIGH

8.8

CVSS v3

NVD

Description

A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

CWE-416Use After Free

How to fix

Remediation Available

webkit2gtk3Red Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3Rocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-debuginfoRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-debuginfoRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-debugsourceRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-debugsourceRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-develRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-develRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-devel-debuginfoRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-devel-debuginfoRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jscRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jscRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-debuginfoRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-debuginfoRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-develRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-develRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-devel-debuginfoRed Hat / RHEL

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

webkit2gtk3-jsc-devel-debuginfoRocky

Fixed in:0:2.38.5-1.el8_8.3RHSA-2023:3108

Fixed in:0:2.38.5-1.el9_2.1RHSA-2023:2653

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.93%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Third-Party Advisory4

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2025-01-22.