Use After Free in Webkitgtk Webkit2gtk3
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 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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Webkitgtk Webkit2gtk3 — versions 2.38.5-1.el8, 2.38.5-1.el9
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux Eus — versions 8.8, 9.2
- Red Hat Enterprise Linux Server Aus — versions 8.8, 9.2
- Red Hat Enterprise Linux Server Tus — versions 8.8
- Webkitgtk — versions Affects 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/CVE-2023-2203 (Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:3108 (Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:2653 (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-2203?
- CVE-2023-2203 is a high-severity vulnerability in Webkitgtk Webkit2gtk3, classified under Use After Free. CVSS score: 8.8/10. Published 2023-05-17.
- How severe is CVE-2023-2203?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-2203 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.