CVE-2021-1820
CVE-2021-1820
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
CVSS 6.5 · Medium · EPSS 1.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
ios and ipados
- Versions
- ≥ unspecified, < 14.5: Affected (custom)
Update to 14.5
tvos
- Versions
- ≥ unspecified, < 14.5: Affected (custom)
Update to 14.5
watchos
- Versions
- ≥ unspecified, < 7.4: Affected (custom)
Update to 7.4
macos
- Versions
- ≥ unspecified, < 11.3: Affected (custom)
Update to 11.3
webkit2gtk Debian:12
- Affected ranges
- ECOSYSTEM: < 2.30.1-1
Update to 2.30.1-1
webkit2gtk Debian:13
- Affected ranges
- ECOSYSTEM: < 2.30.1-1
Update to 2.30.1-1
webkit2gtk Debian:14
- Affected ranges
- ECOSYSTEM: < 2.30.1-1
Update to 2.30.1-1
wpewebkit Debian:12
- Affected ranges
- ECOSYSTEM: < 2.30.0-1
Update to 2.30.0-1
wpewebkit Debian:13
- Affected ranges
- ECOSYSTEM: < 2.30.0-1
Update to 2.30.0-1
wpewebkit Debian:14
- Affected ranges
- ECOSYSTEM: < 2.30.0-1
Update to 2.30.0-1
qtwebkit-opensource-src Ubuntu:16.04:LTS
- Versions
- 5.4.2+dfsg-1ubuntu2.1
- 5.5.1+dfsg-2ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
webkit2gtk Ubuntu:16.04:LTS
- Versions
- 2.8.5+dfsg1-3
- 2.10.3+dfsg1-1
- 2.10.4+dfsg1-1
- 2.10.5-1
- 2.10.6-1
- 2.10.6-1ubuntu1
- 2.10.8-1ubuntu1
- 2.10.9-1ubuntu1
- 2.12.5-0ubuntu0.16.04.1
- 2.14.2-0ubuntu0.16.04.1
- 2.14.3-0ubuntu0.16.04.1
- 2.14.5-0ubuntu0.16.04.1
- 2.16.1-0ubuntu0.16.04.1
- 2.16.1-0ubuntu0.16.04.2
- 2.16.2-0ubuntu0.16.04.1
- 2.16.3-0ubuntu0.16.04.1
- 2.16.6-0ubuntu0.16.04.1
- 2.18.0-0ubuntu0.16.04.2
- 2.18.3-0ubuntu0.16.04.1
- 2.18.4-0ubuntu0.16.04.1
- 2.18.5-0ubuntu0.16.04.1
- 2.18.6-0ubuntu0.16.04.1
- 2.20.1-0ubuntu0.16.04.1
- 2.20.2-0ubuntu0.16.04.1
- 2.20.3-0ubuntu0.16.04.1
- 2.20.5-0ubuntu0.16.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
qtwebkit-source Ubuntu:16.04:LTS
- Versions
- 2.3.2-0ubuntu10
- 2.3.2-0ubuntu11
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
webkitgtk Ubuntu:16.04:LTS
- Versions
- 2.4.9-2ubuntu2
- 2.4.10-0ubuntu1
- 2.4.11-0ubuntu0.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
webkit2gtk Ubuntu:18.04:LTS
- Versions
- 2.18.0-2
- 2.18.0-2build1
- 2.18.2-1
- 2.18.3-1
- 2.18.4-1
- 2.18.6-1
- 2.19.91-1ubuntu1
- 2.19.92-1
- 2.20.0-1
- 2.20.0-2
- 2.20.0-2ubuntu1
- 2.20.1-1
- 2.20.2-0ubuntu0.18.04.1
- 2.20.3-0ubuntu0.18.04.1
- 2.20.5-0ubuntu0.18.04.1
- 2.22.2-0ubuntu0.18.04.1
- 2.22.2-0ubuntu0.18.04.2
- 2.22.4-0ubuntu0.18.04.1
- 2.22.5-0ubuntu0.18.04.1
- 2.22.6-0ubuntu0.18.04.1
- 2.24.1-0ubuntu0.18.04.1
- 2.24.2-0ubuntu0.18.04.1
- 2.24.4-0ubuntu0.18.04.1
- 2.26.1-0ubuntu0.18.04.1
- 2.26.2-0ubuntu0.18.04.1
- 2.26.3-0ubuntu0.18.04.1
- 2.26.4-0ubuntu0.18.04.1
- 2.28.0-0ubuntu0.18.04.3
- 2.28.1-0ubuntu0.18.04.1
- 2.28.2-0ubuntu0.18.04.1
- 2.28.3-0ubuntu0.18.04.1
- 2.28.4-0ubuntu0.18.04.1
- Affected ranges
- ECOSYSTEM: < 2.30.3-0ubuntu0.18.04.1
Update to 2.30.3-0ubuntu0.18.04.1
qtwebkit-opensource-src Ubuntu:18.04:LTS
- Versions
- 5.9.1+dfsg-5ubuntu1
- 5.9.1+dfsg-5ubuntu3
- 5.212.0~alpha2-5build2
- 5.212.0~alpha2-5build4
- 5.212.0~alpha2-7
- 5.212.0~alpha2-7build2
- 5.212.0~alpha2-7ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
qtwebkit-source Ubuntu:18.04:LTS
- Versions
- 2.3.2-0ubuntu13
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
webkitgtk Ubuntu:18.04:LTS
- Versions
- 2.4.11-3
- 2.4.11-3ubuntu2
- 2.4.11-3ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
webkit2gtk Ubuntu:20.04:LTS
- Versions
- 2.26.1-3
- 2.26.2-1
- 2.26.3-1ubuntu2
- 2.26.4-1ubuntu1
- 2.28.0-1ubuntu2
- 2.28.1-1
- 2.28.2-0ubuntu0.20.04.1
- 2.28.3-0ubuntu0.20.04.1
- 2.28.4-0ubuntu0.20.04.1
- Affected ranges
- ECOSYSTEM: < 2.30.3-0ubuntu0.20.04.1
Update to 2.30.3-0ubuntu0.20.04.1
qtwebkit-opensource-src Ubuntu:20.04:LTS
- Versions
- 5.212.0~alpha3-3
- 5.212.0~alpha3-5
- 5.212.0~alpha3-6
- 5.212.0~alpha3-7
- 5.212.0~alpha4-1
- 5.212.0~alpha4-1ubuntu1
- 5.212.0~alpha4-1ubuntu2
- 5.212.0~alpha4-1ubuntu2.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
wpewebkit Ubuntu:20.04:LTS
- Versions
- 2.26.3-1
- 2.26.4-1
- 2.26.4-1build1
- 2.28.0-1
- 2.28.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
qtwebkit-opensource-src Ubuntu:22.04:LTS
- Versions
- 5.212.0~alpha4-12
- 5.212.0~alpha4-13
- 5.212.0~alpha4-14
- 5.212.0~alpha4-14build1
- 5.212.0~alpha4-14ubuntu2
- 5.212.0~alpha4-15ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
wpewebkit Ubuntu:22.04:LTS
- Versions
- 2.32.4-1
- 2.34.1-1
- 2.34.2-1
- 2.34.3-1
- 2.34.4-1
- 2.34.5-1
- 2.34.6-1
- 2.36.0-2ubuntu2
- 2.36.0-2ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
qtwebkit-opensource-src Ubuntu:24.04:LTS
- Versions
- 5.212.0~alpha4-33
- 5.212.0~alpha4-33build1
- 5.212.0~alpha4-34
- 5.212.0~alpha4-34ubuntu3
- 5.212.0~alpha4-34ubuntu4
- 5.212.0~alpha4-36
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published