CVE-2019-14575
published 2020-11-23CVE-2019-14575: Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
PriorityP335high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.36%
28.6th percentile
Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | edk2 | < edk2 0~20200229.4c0f6e34-1 (bookworm) | edk2 0~20200229.4c0f6e34-1 (bookworm) |
| tianocore | edk2 | >= 0 < 0~20200229.4c0f6e34-1 | 0~20200229.4c0f6e34-1 |
| tianocore | edk2 | >= 0 < 0~20200229.4c0f6e34-1 | 0~20200229.4c0f6e34-1 |
| tianocore | edk2 | >= 0 < 0~20200229.4c0f6e34-1 | 0~20200229.4c0f6e34-1 |
| tianocore | edk2 | >= 0 < 0~20200229.4c0f6e34-1 | 0~20200229.4c0f6e34-1 |
| tianocore | edk2 | >= 0 < 0~20160408.ffea0a2c-2ubuntu0.1 | 0~20160408.ffea0a2c-2ubuntu0.1 |
| tianocore | edk2 | >= 0 < 0~20180205.c0d9813c-2ubuntu0.2 | 0~20180205.c0d9813c-2ubuntu0.2 |
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
osv9.1CRITICAL
vendor_ubuntu9.1CRITICAL
vendor_debian7.8LOW
vendor_redhat7.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-jg74-g2r7-p8mf: Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access
ghsa_unreviewed·2022-05-24
CVE-2019-14575 [HIGH] GHSA-jg74-g2r7-p8mf: Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access
Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
OSV
CVE-2019-14575: Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access
osv·2020-11-23·CVSS 7.8
CVE-2019-14575 [HIGH] CVE-2019-14575: Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access
Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
OSV
edk2 vulnerabilities
osv·2020-04-30·CVSS 9.1
CVE-2018-12178 [CRITICAL] edk2 vulnerabilities
edk2 vulnerabilities
A buffer overflow was discovered in the network stack. An unprivileged user
could potentially enable escalation of privilege and/or denial of service.
This issue was already fixed in a previous release for 18.04 LTS and 19.10.
(CVE-2018-12178)
A buffer overflow was discovered in BlockIo service. An unauthenticated user
could potentially enable escalation of privilege, information disclosure and/or
denial of service. This issue was already fixed in a previous release for 18.04
LTS and 19.10. (CVE-2018-12180)
A stack overflow was discovered in bmp. An unprivileged user
could potentially enable denial of service or elevation of privilege via
local access. This issue was already fixed in a previous release for 18.04
LTS and 19.10. (CVE-2018-12181)
It was discovered tha
Ubuntu
EDK II vulnerabilities
vendor_ubuntu·2020-04-30·CVSS 9.1
CVE-2018-12178 [CRITICAL] EDK II vulnerabilities
Title: EDK II vulnerabilities
Summary: Several security issues were fixed in edk2.
A buffer overflow was discovered in the network stack. An unprivileged user
could potentially enable escalation of privilege and/or denial of service.
This issue was already fixed in a previous release for 18.04 LTS and 19.10.
(CVE-2018-12178)
A buffer overflow was discovered in BlockIo service. An unauthenticated user
could potentially enable escalation of privilege, information disclosure and/or
denial of service. This issue was already fixed in a previous release for 18.04
LTS and 19.10. (CVE-2018-12180)
A stack overflow was discovered in bmp. An unprivileged user
could potentially enable denial of service or elevation of privilege via
local access. This issue was already fixed in a previous release f
Red Hat
edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
vendor_redhat·2020-02-05·CVSS 7.8
CVE-2019-14575 [HIGH] CWE-863 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
Package: ovmf (Red Hat Enterprise Linux 7) - Affected
Package: edk2 (Red Hat Enterprise Linux 8) - Affected
Debian
CVE-2019-14575: edk2 - Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticat...
vendor_debian·2019·CVSS 7.8
CVE-2019-14575 [HIGH] CVE-2019-14575: edk2 - Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticat...
Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.
Scope: local
bookworm: resolved (fixed in 0~20200229.4c0f6e34-1)
bullseye: resolved (fixed in 0~20200229.4c0f6e34-1)
forky: resolved (fixed in 0~20200229.4c0f6e34-1)
sid: resolved (fixed in 0~20200229.4c0f6e34-1)
trixie: resolved (fixed in 0~20200229.4c0f6e34-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [epel-all]
bugzilla·2020-02-10·CVSS 7.8
CVE-2019-14575 [HIGH] CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [epel-all]
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [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 mul
Bugzilla
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [fedora-all]
bugzilla·2020-02-10·CVSS 7.8
CVE-2019-14575 [HIGH] CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [fedora-all]
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check [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
Bugzilla
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
bugzilla·2019-08-02·CVSS 7.8
CVE-2019-14575 [HIGH] CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
CVE-2019-14575 edk2: DxeImageVerificationHandler() fails open in case of dbx signature check
Function DxeImageVerificationHandler() does not properly check whether an unsigned EFI file should be allowed or not. If a .efi image is both in the whitelist and in the blacklist, it is not supposed to load but if certain operations fail it will be loaded anyway, thus bypassing the verification.
DxeImageVerificationHandler() has specific code to handle .efis that aren't signed, but should be allowed to run. To do this, it hashes the .efi image, and then compares the image against a blacklist (dbx) and a whitelist (db). A situation could occur where a hash is both in the dbx and db list. This is supposed to fail. since it's in the dbx list. Because of the way a signature is looked up in dbx (usin
2020-11-23
Published