CVE-2019-14584
published 2021-06-03CVE-2019-14584: Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
PriorityP434high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.33%
24.9th percentile
Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | edk2 | < edk2 2020.11-1 (bookworm) | edk2 2020.11-1 (bookworm) |
| msrc | azl3_shim-unsigned-aarch64_15.4-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_shim-unsigned-aarch64_15.8-5_on_azure_linux_3.0 | — | — |
| msrc | azl3_shim-unsigned-x64_15.4-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_shim-unsigned-x64_15.8-5_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_qemu_6.2.0-24_on_cbl_mariner_2.0 | — | — |
| tianocore | edk2 | < 2020-10-21 | 2020-10-21 |
| tianocore | edk2 | >= 0 < 2020.11-1 | 2020.11-1 |
| tianocore | edk2 | >= 0 < 2020.11-1 | 2020.11-1 |
| tianocore | edk2 | >= 0 < 2020.11-1 | 2020.11-1 |
| tianocore | edk2 | >= 0 < 2020.11-1 | 2020.11-1 |
| tianocore | edk2 | >= 0 < 0~20160408.ffea0a2c-2ubuntu0.2 | 0~20160408.ffea0a2c-2ubuntu0.2 |
| tianocore | edk2 | >= 0 < 0~20180205.c0d9813c-2ubuntu0.3 | 0~20180205.c0d9813c-2ubuntu0.3 |
| tianocore | edk2 | >= 0 < 0~20191122.bd85bf54-2ubuntu3.1 | 0~20191122.bd85bf54-2ubuntu3.1 |
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_ubuntu5.5MEDIUM
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Microsoft
Null pointer dereference in Tianocore EDK2
vendor_msrc·2021-06-08·CVSS 7.8
CVE-2019-14584 [HIGH] CWE-476 Null pointer dereference in Tianocore EDK2
Null pointer dereference in Tianocore EDK2
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
intel: intel
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.co
Ubuntu
EDK II vulnerabilities
vendor_ubuntu·2021-01-07·CVSS 5.5
CVE-2019-14584 [MEDIUM] EDK II vulnerabilities
Title: EDK II vulnerabilities
Summary: Several security issues were fixed in EDK II.
Laszlo Ersek discovered that EDK II incorrectly validated certain signed
images. An attacker could possibly use this issue with a specially crafted
image to cause EDK II to hang, resulting in a denial of service. This issue
only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
(CVE-2019-14562)
It was discovered that EDK II incorrectly parsed signed PKCS #7 data. An
attacker could use this issue to cause EDK II to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2019-14584)
Instructions: After a standard system update you need to restart the virtual machines
that use the affected firmware to make all the necessary changes.
Red Hat
edk2: NULL pointer dereference in AuthenticodeVerify()
vendor_redhat·2020-10-16·CVSS 7.8
CVE-2019-14584 [HIGH] CWE-476 edk2: NULL pointer dereference in AuthenticodeVerify()
edk2: NULL pointer dereference in AuthenticodeVerify()
Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
Package: ovmf (Red Hat Enterprise Linux 7) - Out of support scope
Package: edk2 (Red Hat Enterprise Linux 9) - Not affected
Debian
CVE-2019-14584: edk2 - Null pointer dereference in Tianocore EDK2 may allow an authenticated user to po...
vendor_debian·2019·CVSS 7.8
CVE-2019-14584 [HIGH] CVE-2019-14584: edk2 - Null pointer dereference in Tianocore EDK2 may allow an authenticated user to po...
Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
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)
GHSA
GHSA-r5j3-cc22-8xx9: Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access
ghsa_unreviewed·2022-05-24
CVE-2019-14584 [HIGH] CWE-476 GHSA-r5j3-cc22-8xx9: Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access
Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
OSV
CVE-2019-14584: Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access
osv·2021-06-03·CVSS 7.8
CVE-2019-14584 [HIGH] CVE-2019-14584: Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access
Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.
OSV
edk2 vulnerabilities
osv·2021-01-07·CVSS 5.5
CVE-2019-14562 [MEDIUM] edk2 vulnerabilities
edk2 vulnerabilities
Laszlo Ersek discovered that EDK II incorrectly validated certain signed
images. An attacker could possibly use this issue with a specially crafted
image to cause EDK II to hang, resulting in a denial of service. This issue
only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
(CVE-2019-14562)
It was discovered that EDK II incorrectly parsed signed PKCS #7 data. An
attacker could use this issue to cause EDK II to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2019-14584)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [fedora-all]
bugzilla·2020-10-20·CVSS 7.8
CVE-2019-14584 [HIGH] CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [fedora-all]
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported ver
Bugzilla
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [epel-all]
bugzilla·2020-10-20·CVSS 7.8
CVE-2019-14584 [HIGH] CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [epel-all]
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify() [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported version
Bugzilla
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify()
bugzilla·2020-10-19·CVSS 7.8
CVE-2019-14584 [HIGH] CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify()
CVE-2019-14584 edk2: NULL pointer dereference in AuthenticodeVerify()
AuthenticodeVerify() calls OpenSSLs d2i_PKCS7() API to parse asn encoded signed authenticode pkcs#7 data. when this successfully returns, a type check is done by calling PKCS7_type_is_signed() and then Pkcs7->d.sign->contents->type is used. It is possible to construct an asn1 blob that successfully decodes and have d2i_PKCS7() return a valid pointer and have PKCS7_type_is_signed() also return success but have Pkcs7->d.sign be a NULL pointer.
Reference:
https://bugzilla.tianocore.org/show_bug.cgi?id=1914
Discussion:
Created edk2 tracking bugs for this issue:
Affects: epel-all [bug 1889878]
Affects: fedora-all [bug 1889877]
---
Upstream commit 26442d11e620 ("CryptoPkg/BaseCryptLib: fix NULL dereference (CVE-2019-145
2021-06-03
Published