CVE-2020-9983
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to code execution.
02 Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to code execution.
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
- 2.20% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.1% 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:N/UI:R/S:U/C:H/I:H/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
- 2020-10-16 16:56Z6 YR AGO
- Last updated
- 2024-08-04 10:50Z2 YR AGO
- Reserved
- 2020-03-02
- Assigning CNA
- apple
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.1
- Document digest
- 6c885135301019c3ad0e20512a07b5df1e18a2e48e9b77b33ff25c570301188e
05 Affected products
06 References
- support.apple.comhttps://support.apple.com/kb/HT211843
- support.apple.comhttps://support.apple.com/kb/HT211850
- support.apple.comhttps://support.apple.com/kb/HT211844
- support.apple.comhttps://support.apple.com/HT211845
- support.apple.comhttps://support.apple.com/kb/HT211952
- seclists.org20201115 APPLE-SA-2020-11-13-5 Additional information for APPLE-SA-2020-09-16-3 Safari 14.0http://seclists.org/fulldisclosure/2020/Nov/18
- seclists.org20201115 APPLE-SA-2020-11-13-4 Additional information for APPLE-SA-2020-09-16-2 tvOS 14.0http://seclists.org/fulldisclosure/2020/Nov/19
- seclists.org20201115 APPLE-SA-2020-11-13-3 Additional information for APPLE-SA-2020-09-16-1 iOS 14.0 and iPadOS 14.0http://seclists.org/fulldisclosure/2020/Nov/20
- seclists.org20201115 APPLE-SA-2020-11-13-6 Additional information for APPLE-SA-2020-09-16-4 watchOS 7.0http://seclists.org/fulldisclosure/2020/Nov/22
- www.openwall.com[oss-security] 20201123 WebKitGTK and WPE WebKit Security Advisory WSA-2020-0008http://www.openwall.com/lists/oss-security/2020/11/23/3
- www.debian.orgDSA-4797https://www.debian.org/security/2020/dsa-4797
- lists.fedoraproject.orgFEDORA-2020-145877bcd3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDGBNKYT7NMW7CJ26YFUPUHPJVYGV7IQ/
- support.apple.comhttps://support.apple.com/kb/HT211935
- lists.fedoraproject.orgFEDORA-2020-e8a7566e80https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY2OBQZFMEFZOSWXPXHPEHOJXXILEEX2/
- security.gentoo.orgGLSA-202012-10https://security.gentoo.org/glsa/202012-10
07 Fixed in
AlmaLinux 8
- OpenEXR-devel Fixed in 2.2.0-12.el8
- OpenEXR-libs Fixed in 2.2.0-12.el8
- accountsservice-devel Fixed in 0.6.55-1.el8
- atkmm Fixed in 2.24.2-7.el8
- atkmm-devel Fixed in 2.24.2-7.el8
- atkmm-doc Fixed in 2.24.2-7.el8
- cairomm Fixed in 1.12.0-8.el8
- cairomm-devel Fixed in 1.12.0-8.el8
- cairomm-doc Fixed in 1.12.0-8.el8
- chrome-gnome-shell Fixed in 10.1-7.el8
- dleyna-core Fixed in 0.6.0-3.el8
- dleyna-server Fixed in 0.6.0-3.el8
- enchant2 Fixed in 2.2.3-3.el8
- enchant2-devel Fixed in 2.2.3-3.el8
- gamin Fixed in 0.1.10-32.el8
- gamin-devel Fixed in 0.1.10-32.el8
- geoclue2 Fixed in 2.5.5-2.el8
- geoclue2-demos Fixed in 2.5.5-2.el8
- geoclue2-devel Fixed in 2.5.5-2.el8
- geoclue2-libs Fixed in 2.5.5-2.el8
- geocode-glib Fixed in 3.26.0-3.el8
- geocode-glib-devel Fixed in 3.26.0-3.el8
- gjs Fixed in 1.56.2-5.el8
- gjs-devel Fixed in 1.56.2-5.el8
- glib2-doc Fixed in 2.56.4-9.el8
- glib2-static Fixed in 2.56.4-9.el8
- glibmm24 Fixed in 2.56.0-2.el8
- glibmm24-devel Fixed in 2.56.0-2.el8
- glibmm24-doc Fixed in 2.56.0-2.el8
- gnome-boxes Fixed in 3.36.5-8.el8
- gnome-photos Fixed in 3.28.1-4.el8
- gnome-photos-tests Fixed in 3.28.1-4.el8
- gnome-terminal Fixed in 3.28.3-3.el8
- gnome-terminal-nautilus Fixed in 3.28.3-3.el8
- gtk-doc Fixed in 1.28-3.el8
- gtk2 Fixed in 2.24.32-5.el8
- gtk2-devel Fixed in 2.24.32-5.el8
- gtk2-devel-docs Fixed in 2.24.32-5.el8
- gtk2-immodule-xim Fixed in 2.24.32-5.el8
- gtk2-immodules Fixed in 2.24.32-5.el8
41 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- OpenEXR-devel Fixed in 2.2.0-12.el8
- OpenEXR-libs Fixed in 2.2.0-12.el8
- accountsservice-devel Fixed in 0.6.55-1.el8
- atkmm Fixed in 2.24.2-7.el8
- atkmm-devel Fixed in 2.24.2-7.el8
- atkmm-doc Fixed in 2.24.2-7.el8
- cairomm Fixed in 1.12.0-8.el8
- cairomm-devel Fixed in 1.12.0-8.el8
- cairomm-doc Fixed in 1.12.0-8.el8
- chrome-gnome-shell Fixed in 10.1-7.el8
- dleyna-core Fixed in 0.6.0-3.el8
- dleyna-server Fixed in 0.6.0-3.el8
- enchant2 Fixed in 2.2.3-3.el8
- enchant2-devel Fixed in 2.2.3-3.el8
- gamin Fixed in 0.1.10-32.el8
- gamin-devel Fixed in 0.1.10-32.el8
- geoclue2 Fixed in 2.5.5-2.el8
- geoclue2-demos Fixed in 2.5.5-2.el8
- geoclue2-devel Fixed in 2.5.5-2.el8
- geoclue2-libs Fixed in 2.5.5-2.el8
- geocode-glib Fixed in 3.26.0-3.el8
- geocode-glib-devel Fixed in 3.26.0-3.el8
- gjs Fixed in 1.56.2-5.el8
- gjs-devel Fixed in 1.56.2-5.el8
- glib2-doc Fixed in 2.56.4-9.el8
- glib2-static Fixed in 2.56.4-9.el8
- glibmm24 Fixed in 2.56.0-2.el8
- glibmm24-devel Fixed in 2.56.0-2.el8
- glibmm24-doc Fixed in 2.56.0-2.el8
- gnome-boxes Fixed in 3.36.5-8.el8
- gnome-photos Fixed in 3.28.1-4.el8
- gnome-photos-tests Fixed in 3.28.1-4.el8
- gnome-terminal Fixed in 3.28.3-3.el8
- gnome-terminal-nautilus Fixed in 3.28.3-3.el8
- gtk-doc Fixed in 1.28-3.el8
- gtk2 Fixed in 2.24.32-5.el8
- gtk2-devel Fixed in 2.24.32-5.el8
- gtk2-devel-docs Fixed in 2.24.32-5.el8
- gtk2-immodule-xim Fixed in 2.24.32-5.el8
- gtk2-immodules Fixed in 2.24.32-5.el8
41 further packages in CloudLinux 8 not shown (first 40 listed).
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 2.30.3-1
- wpewebkit Fixed in 2.30.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- webkit2gtk Fixed in 2.30.3-1
- wpewebkit Fixed in 2.30.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- webkit2gtk Fixed in 2.30.3-1
- wpewebkit Fixed in 2.30.3-1
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 2.30.3-0ubuntu0.18.04.1
- 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 2.30.3-0ubuntu0.20.04.1
- 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.