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CVE-2018-12182

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to...

6.7 MediumFix available

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.41%Down 0.9 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.7

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Record
CVE-2018-12182
CVSS 3.0
6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-441
Updated
2026-11-02
CVE List No score

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Record
CVE-2018-12182
Updated
2026-11-02
EUVDEUVD-2018-4160 No score

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Record
EUVD-2018-4160
Updated
2026-11-03
GitHub AdvisoriesGHSA-rq43-vgrv-48m9 6.7

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to...

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Record
GHSA-rq43-vgrv-48m9
CVSS 3.0
6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-441
Updated
2026-11-02
OSVBELL-CVE-2018-12182 6.7

CVE-2018-12182 does not affect BellSoft software

Record
BELL-CVE-2018-12182
CVSS 3.0
6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-12182 6.7

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Record
UBUNTU-CVE-2018-12182
CVSS 3.0
6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2021-0035 No score

Updated edk2 packages fix multiples security vulnerabilities

Improper configuration in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2018-12179).

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2018-12182).

Stack overflow in DxeCore for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2018-12183).

Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege and/or denial of service via network access. (CVE-2019-0160).

Stack overflow in XHCI for EDK II may allow an unauthenticated user to potentially enable denial of service via local access. (CVE-2019-0161).

Improper authentication in EDK II may allow a privileged user to potentially enable information disclosure via network access. (CVE-2019-14553).

Insufficient control flow management in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable denial of service via adjacent access. (CVE-2019-14558).

Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access. (CVE-2019-14559).

Integer truncation in EDK II may allow an authenticated user to potentially enable escalation of privilege via local access. (CVE-2019-14563).

Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access. (CVE-2019-14575).

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).

Use after free vulnerability in EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via adjacent access. (CVE-2019-14586).

Logic issue EDK II may allow an unauthenticated user to potentially enable denial of service via adjacent access. (CVE-2019-14587).

Integer overflow in DxeImageVerificationHandler() EDK II may allow an authenticated user to potentially enable denial of service via local access. (CVE-2019-14562).

Record
MGASA-2021-0035
Updated
2026-11-02
OSVUSN-6920-1 No score

edk2 vulnerabilities

It was discovered that EDK II was not properly performing bounds checks in Tianocompress, which could lead to a buffer overflow. An authenticated user could use this issue to potentially escalate their privileges via local access. (CVE-2017-5731)

It was discovered that EDK II had an insufficient memory write check in the SMM service, which could lead to a page fault occurring. An authenticated user could use this issue to potentially escalate their privileges, disclose information and/or create a denial of service via local access. (CVE-2018-12182)

It was discovered that EDK II incorrectly handled memory in DxeCore, which could lead to a stack overflow. An unauthenticated user could this issue to potentially escalate their privileges, disclose information and/or create a denial of service via local access. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-12183)

It was discovered that EDK II incorrectly handled memory in the Variable service under certain circumstances. An authenticated user could use this issue to potentially escalate their privileges, disclose information and/or create a denial of service via local access. (CVE-2018-3613)

It was discovered that EDK II incorrectly handled memory in its system firmware, which could lead to a buffer overflow. An unauthenticated user could use this issue to potentially escalate their privileges and/or create a denial of service via network access. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-0160)

Record
USN-6920-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
edk2
Mageia:7
From an advisory covering 14 CVEs
before 20201127stable-1.mga7
20201127stable-1.mga7
edk2
Ubuntu:Pro:16.04:LTS
before 0~20160408.ffea0a2c-2ubuntu0.2+esm1, plus listed versions
0~20150106.5c2d456b-20~20160104.c2a892d7-10~20160408.ffea0a2c-20~20160408.ffea0a2c-2ubuntu0.10~20160408.ffea0a2c-2ubuntu0.2
0~20160408.ffea0a2c-2ubuntu0.2+esm1
edk2
Ubuntu:Pro:18.04:LTS
before 0~20180205.c0d9813c-2ubuntu0.3+esm1, plus listed versions
0~20170911.5dfba97c-10~20171010.234dbcef-10~20171027.76fd5a66-10~20171205.a9212288-10~20180105.0bc94c74-1
Show 5 moreShow less
0~20180205.c0d9813c-10~20180205.c0d9813c-20~20180205.c0d9813c-2ubuntu0.10~20180205.c0d9813c-2ubuntu0.20~20180205.c0d9813c-2ubuntu0.3
0~20180205.c0d9813c-2ubuntu0.3+esm1
edk2
Ubuntu:Pro:16.04:LTS
From an advisory covering 5 CVEs
before 0~20160408.ffea0a2c-2ubuntu0.2+esm1, plus listed versions
0~20150106.5c2d456b-20~20160104.c2a892d7-10~20160408.ffea0a2c-20~20160408.ffea0a2c-2ubuntu0.10~20160408.ffea0a2c-2ubuntu0.2
0~20160408.ffea0a2c-2ubuntu0.2+esm1
edk2
Ubuntu:Pro:18.04:LTS
From an advisory covering 5 CVEs
before 0~20180205.c0d9813c-2ubuntu0.3+esm1, plus listed versions
0~20170911.5dfba97c-10~20171010.234dbcef-10~20171027.76fd5a66-10~20171205.a9212288-10~20180105.0bc94c74-1
Show 5 moreShow less
0~20180205.c0d9813c-10~20180205.c0d9813c-20~20180205.c0d9813c-2ubuntu0.10~20180205.c0d9813c-2ubuntu0.20~20180205.c0d9813c-2ubuntu0.3
0~20180205.c0d9813c-2ubuntu0.3+esm1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-12182 is a medium vulnerability (CVSS 6.7) in Tianocore Edk Ii, published March 27, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in edk2 0~20160408.ffea0a2c-2ubuntu0.2+esm1.

References

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