CVE-2021-45482
In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability than CVE-2021-30889.
02 Description
In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability than CVE-2021-30889.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.3% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. 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
- 2021-12-25 00:04Z4 YR AGO
- Last updated
- 2024-08-04 04:39Z2 YR AGO
- Reserved
- 2021-12-25
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- aa4279fb8cbede8d3d4ef3dc1aa8ff0d23437ac6b158620154a17539c03a9ef6
05 Affected products
06 References
- github.comhttps://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3
- www.openwall.com[oss-security] 20220121 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0001http://www.openwall.com/lists/oss-security/2022/01/21/2
07 Fixed in
AlmaLinux 8
- webkit2gtk3 Fixed in 2.34.6-1.el8
- webkit2gtk3-devel Fixed in 2.34.6-1.el8
- webkit2gtk3-jsc Fixed in 2.34.6-1.el8
- webkit2gtk3-jsc-devel Fixed in 2.34.6-1.el8
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 2.34.6-1.el8
- webkit2gtk3-devel Fixed in 2.34.6-1.el8
- webkit2gtk3-jsc Fixed in 2.34.6-1.el8
- webkit2gtk3-jsc-devel Fixed in 2.34.6-1.el8
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.
Debian 12
- webkit2gtk Fixed in 2.32.4-1
- wpewebkit Fixed in 2.32.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- webkit2gtk Fixed in 2.32.4-1
- wpewebkit Fixed in 2.32.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- webkit2gtk Fixed in 2.32.4-1
- wpewebkit Fixed in 2.32.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- qtwebkit-opensource-src No fix yet
- qtwebkit-source No fix yet
- webkit2gtk No fix yet
- webkitgtk 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
- qtwebkit-opensource-src No fix yet
- qtwebkit-source No fix yet
- webkit2gtk Fixed in 2.32.4-0ubuntu0.18.04.1
- webkitgtk No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- qtwebkit-opensource-src No fix yet
- webkit2gtk Fixed in 2.32.4-0ubuntu0.20.04.1
- wpewebkit No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- qtwebkit-opensource-src No fix yet
- wpewebkit No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- qtwebkit-opensource-src 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.