- Vulnerability/
- USN-4923-1
20/4/2021
USN-4923-1: EDK II vulnerabilities
First published: Tue Apr 20 2021(Updated: )
Laszlo Ersek discovered that EDK II incorrectly handled recursion. A remote attacker could possibly use this issue to cause EDK II to consume resources, leading to a denial of service. (CVE-2021-28210) Satoshi Tanda discovered that EDK II incorrectly handled decompressing certain images. A remote attacker could use this issue to cause EDK II to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28211)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/ovmf | <2020.05-5ubuntu0.2 | 2020.05-5ubuntu0.2 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/qemu-efi | <2020.05-5ubuntu0.2 | 2020.05-5ubuntu0.2 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/qemu-efi-aarch64 | <2020.05-5ubuntu0.2 | 2020.05-5ubuntu0.2 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/qemu-efi-arm | <2020.05-5ubuntu0.2 | 2020.05-5ubuntu0.2 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/ovmf | <0~20191122.bd85bf54-2ubuntu3.2 | 0~20191122.bd85bf54-2ubuntu3.2 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/qemu-efi | <0~20191122.bd85bf54-2ubuntu3.2 | 0~20191122.bd85bf54-2ubuntu3.2 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/qemu-efi-aarch64 | <0~20191122.bd85bf54-2ubuntu3.2 | 0~20191122.bd85bf54-2ubuntu3.2 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/qemu-efi-arm | <0~20191122.bd85bf54-2ubuntu3.2 | 0~20191122.bd85bf54-2ubuntu3.2 |
| Ubuntu Ubuntu | =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2021-28211
- https://ubuntu.com/security/CVE-2021-28210
- https://ubuntu.com/security/notices/USN-7060-1
- https://launchpad.net/ubuntu/+source/edk2/2020.05-5ubuntu0.2
- https://launchpad.net/ubuntu/+source/edk2/0~20191122.bd85bf54-2ubuntu3.2
- https://ubuntu.com/security/notices/USN-4923-1 (Advisory)
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