CVE-2021-28210
published 2021-06-08CVE-2021-28210: An unlimited recursion in DxeCore in EDK II. FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.40%
32.2th percentile
An unlimited recursion in DxeCore in EDK II.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
TianoCore: TianoCore
Customer Action Required: Yes
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | edk2 | < edk2 2020.11-1 (bookworm) | edk2 2020.11-1 (bookworm) |
| msrc | cbl2_qemu_6.2.0-24_on_cbl_mariner_2.0 | — | — |
| tianocore | edk2 | >= 0 < 0~20191122.bd85bf54-2ubuntu3.6 | 0~20191122.bd85bf54-2ubuntu3.6 |
| tianocore | edk2 | >= 0 < 0~20191122.bd85bf54-2ubuntu3.2 | 0~20191122.bd85bf54-2ubuntu3.2 |
| tianocore | edk2 | >= 0 < 2022.02-3ubuntu0.22.04.3 | 2022.02-3ubuntu0.22.04.3 |
| tianocore | edk2 | >= 0 < 0~20160408.ffea0a2c-2ubuntu0.2+esm3 | 0~20160408.ffea0a2c-2ubuntu0.2+esm3 |
| tianocore | edk2 | >= 0 < 0~20180205.c0d9813c-2ubuntu0.3+esm2 | 0~20180205.c0d9813c-2ubuntu0.3+esm2 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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Ubuntu
EDK II vulnerabilities
vendor_ubuntu·2024-10-10·CVSS 5.5
CVE-2021-38578 [MEDIUM] EDK II vulnerabilities
Title: EDK II vulnerabilities
Summary: Several security issues were fixed in EDK II.
It was discovered that EDK II did not check the buffer length in XHCI,
which could lead to a stack overflow. A local attacker could potentially
use this issue to cause a denial of service. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-0161)
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. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (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
Microsoft
An unlimited recursion in DxeCore in EDK II.
vendor_msrc·2021-06-08·CVSS 7.8
CVE-2021-28210 [HIGH] CWE-674 An unlimited recursion in DxeCore in EDK II.
An unlimited recursion in DxeCore in EDK II.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
TianoCore: TianoCore
Customer Action Required: Yes
Ubuntu
EDK II vulnerabilities
vendor_ubuntu·2021-04-20·CVSS 7.8
CVE-2021-28211 [HIGH] EDK II vulnerabilities
Title: EDK II vulnerabilities
Summary: Several security issues were fixed in EDK II.
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)
Instructions: After a standard system update you need to restart the virtual machines
that use the affected firmware to make all the necessary changes.
Debian
CVE-2021-28210: edk2 - An unlimited recursion in DxeCore in EDK II.
vendor_debian·2021·CVSS 7.8
CVE-2021-28210 [HIGH] CVE-2021-28210: edk2 - An unlimited recursion in DxeCore in EDK II.
An unlimited recursion in DxeCore in EDK II.
Scope: local
bookworm: resolved (fixed in 2020.11-1)
bullseye: resolved (fixed in 2020.11-1)
forky: resolved (fixed in 2020.11-1)
sid: resolved (fixed in 2020.11-1)
trixie: resolved (fixed in 2020.11-1)
Red Hat
edk2: unlimited FV recursion, round 2
vendor_redhat·2020-11-19·CVSS 7.8
CVE-2021-28210 [HIGH] CWE-674 edk2: unlimited FV recursion, round 2
edk2: unlimited FV recursion, round 2
An unlimited recursion in DxeCore in EDK II.
A flaw was found in edk2. An unlimited recursion in DxeCore may allow an attacker to corrupt the system memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Package: ovmf (Red Hat Enterprise Linux 7) - Out of support scope
Package: edk2 (Red Hat Enterprise Linux 9) - Not affected
OSV
edk2 vulnerabilities
osv·2024-10-10·CVSS 5.5
CVE-2019-0161 [MEDIUM] edk2 vulnerabilities
edk2 vulnerabilities
It was discovered that EDK II did not check the buffer length in XHCI,
which could lead to a stack overflow. A local attacker could potentially
use this issue to cause a denial of service. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-0161)
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. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (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. This issue only aff
OSV
edk2 vulnerabilities
osv·2021-04-20·CVSS 7.8
CVE-2021-28210 [HIGH] edk2 vulnerabilities
edk2 vulnerabilities
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)
No detection rules found.
No public exploits indexed.
2021-06-08
Published