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01 Record

CVE-2023-2203

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

HighPUBLISHEDCNA: redhat
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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02 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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.93% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 60.4% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-05-17 00:00Z3 YR AGO
Last updated
2025-01-22 19:41Z1 YR AGO
Reserved
2023-04-21
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
1d2a260702bcead6ec69bca9f1633e7b72550b051da4c74fc8a8f1ca7bc7c444

05 Affected products

VendorProductVersionsPlatforms
n/aWebKitGTKAffects webkit2gtk3 v2.38.5-1.el8 and webkit2gtk3 v2.38.5-1.el9, Fixed in webkit2gtk3 v2.38.5-1.el8_8.3 and webkit2gtk3 v2.38.5-1.el9_2.1—

06 References

07 Fixed in

AlmaLinux 8

  • webkit2gtk3
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-devel
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-jsc
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-jsc-devel
    Fixed in 2.38.5-1.el8_8.3

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • webkit2gtk3
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-devel
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-jsc
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.38.5-1.el9_2.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • webkit2gtk3
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-devel
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-jsc
    Fixed in 2.38.5-1.el8_8.3
  • webkit2gtk3-jsc-devel
    Fixed in 2.38.5-1.el8_8.3

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • webkit2gtk3
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-devel
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-jsc
    Fixed in 2.38.5-1.el9_2.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.38.5-1.el9_2.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • webkit2gtk
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • webkit2gtk
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.