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Fencer Intel
critical 9.1

CVE-2018-12178 json

Buffer overflow in network stack for EDK II may allow unprivileged user to potentially enable escalation of privilege and/or denial of serv…

published 7y ago modified 4mo ago also EUVD-2018-4156

cvss
9.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Buffer overflow in network stack for EDK II may allow unprivileged user to potentially enable escalation of privilege and/or denial of service via network.

Patch / fix

  • edk2 Debian 14, Debian 13, Debian 12 0~20181115.85588389-3

debian advisories DEBIAN-CVE-2018-12178

  • edk2 Ubuntu 16.04 LTS 0~20160408.ffea0a2c-2ubuntu0.1
  • edk2 Ubuntu 18.04 LTS 0~20180205.c0d9813c-2ubuntu0.2

ubuntu advisories UBUNTU-CVE-2018-12178

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ovmf SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 2017+git1510945757.b2662641d5-3.8.3
  • ovmf SLE Module for Server Applications 15 2017+git1510945757.b2662641d5-5.14.1
  • ovmf SLES for SAP 12 SP3, SLES 12 SP3 2017+git1492060560.b6d11d7c46-4.20.1

suse advisories SUSE-SU-2019:0581-1SUSE-SU-2019:0580-1SUSE-SU-2019:0579-1

  • ovmf openSUSE Tumbleweed 202105-3.4
  • ovmf openSUSE Leap 15.0 2017+git1510945757.b2662641d5-lp150.4.13.1

opensuse advisories openSUSE-SU-2024:11134-1openSUSE-SU-2019:1083-1

Is CVE-2018-12178 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-12178 updated cvss 7.2

edk2: improper DNS packet size check

  • Red Hat Enterprise Linux 7 OVMF Red Hat Enterprise Linux 8 edk2, edk2-ovmf, edk2-aarch64 Red Hat Virtualization 4 redhat-virtualization-host-image-update
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

Affected products

  • Extensible Firmware Interface Development Kit (EDK II) Extensible Firmware Interface Development Kit (EDK II)

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.