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Fencer Vulns
medium 5.5

CVE-2023-1018 json

TPM2.0 vulnerable to out-of-bounds read

published 2023-02-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23310

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
5.6%
EPSS 5.6% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

An out-of-bounds read vulnerability exists in TPM2.0's Module Library allowing a 2-byte read past the end of a TPM2.0 command in the CryptParameterDecryption routine. An attacker who can successfully exploit this vulnerability can read or access sensitive data stored in the TPM.

Patch / fix

  • microsoft windows_10_1507 10.0.10240.19805
  • microsoft windows_10_1607 10.0.14393.5786
  • microsoft windows_10_1809 10.0.17763.4131
  • microsoft windows_10_20h2 10.0.19042.2728
  • microsoft windows_10_21h2 10.0.19044.2728
  • microsoft windows_10_22h2 10.0.19045.2728
  • microsoft windows_11_21h2 10.0.22000.1696
  • microsoft windows_11_22h2 10.0.22621.1413
  • microsoft windows_server_2016 10.0.14393.5786
  • microsoft windows_server_2019 10.0.17763.4131
  • microsoft windows_server_2022 10.0.20348.1607
  • libtpms Debian 14, Debian 13, Debian 12 0.9.2-3.1

debian advisories DEBIAN-CVE-2023-1018

  • libtpms Ubuntu 22.04 LTS 0.9.3-0ubuntu1.22.04.1

ubuntu advisories UBUNTU-CVE-2023-1018

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

  • SLOF RHEL 8 20210217-1.module+el8.8.0+16781+9f4724c2
  • hivex RHEL 8 1.3.18-23.module+el8.8.0+16781+9f4724c2
  • netcf RHEL 8 0.2.8-12.module+el8.8.0+16781+9f4724c2
  • swtpm RHEL 8 0.7.0-4.20211109gitb79fd91.module+el8.8.0+16781+9f4724c2
  • libnbd RHEL 8 1.6.0-5.module+el8.8.0+16781+9f4724c2
  • nbdkit RHEL 8 1.24.0-5.module+el8.8.0+17308+05924798
  • libtpms RHEL 8 0.9.1-2.20211126git1ff6fe1f43.module+el8.8.0+18453+e0bf0d1d
  • libvirt RHEL 8 8.0.0-19.module+el8.8.0+18453+e0bf0d1d

red hat advisories RHSA-2023:2757RHSA-2023:2453RHSA-2023:1833

  • libtpms SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +12 more 0.8.2-150300.3.9.1

suse advisories SUSE-SU-2023:2051-1

  • SLOF AlmaLinux 8 20210217-1.module_el8.6.0+2880+7d9e3703
  • hivex AlmaLinux 8 1.3.18-23.module_el8.6.0+2880+7d9e3703
  • hivex AlmaLinux 8 1.3.18-23.module_el8.6.0+3161+a07c0ea5
  • netcf AlmaLinux 8 0.2.8-12.module_el8.6.0+2880+7d9e3703
  • netcf AlmaLinux 8 0.2.8-12.module_el8.6.0+3161+a07c0ea5
  • swtpm AlmaLinux 8 0.7.0-4.20211109gitb79fd91.module_el8.7.0+3346+68867adb
  • libnbd AlmaLinux 8 1.6.0-5.module_el8.6.0+2880+7d9e3703
  • libnbd AlmaLinux 8 1.6.0-5.module_el8.6.0+3161+a07c0ea5

almalinux advisories ALSA-2023:2757ALSA-2023:2453

  • hivex Rocky Linux 8 1.3.18-23.module+el8.10.0+1835+43f01cbb
  • hivex Rocky Linux 8 1.3.18-23.module+el8.10.0+1590+a67ab969
  • netcf Rocky Linux 8 0.2.8-12.module+el8.10.0+1590+a67ab969
  • netcf Rocky Linux 8 0.2.8-12.module+el8.10.0+1835+43f01cbb
  • swtpm Rocky Linux 8 0.7.0-4.20211109gitb79fd91.module+el8.10.0+1835+43f01cbb
  • swtpm Rocky Linux 8 0.7.0-4.20211109gitb79fd91.module+el8.10.0+1590+a67ab969
  • libnbd Rocky Linux 8 1.6.0-5.module+el8.10.0+1835+43f01cbb
  • libnbd Rocky Linux 8 1.6.0-5.module+el8.10.0+1590+a67ab969

rocky linux advisories RLSA-2023:2757

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-2023-1018 updated cvss 5.5

tpm2: TCG TPM2.0 implementations vulnerable to memory corruption

  • Red Hat Enterprise Linux 8 Advanced Virtualization libtpms
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder EUS (v.8.6) libnbd 1.6.0-5.module+el8.6.0+14480+c0a3aa0f, netcf 0.2.8-12.module+el8.6.0+14480+c0a3aa0f, hivex 1.3.18-23.module+el8.6.0+14480+c0a3aa0f, nbdfuse 1.6.0-5.module+el8.6.0+14480+c0a3aa0f, SLOF 20210217-1.module+el8.6.0+14480+c0a3aa0f, seabios 1.15.0-2.module+el8.6.0+14757+c25ee005, +38 more
    fixed: vendor fix RHSA-2023:1833
  • Red Hat Enterprise Linux AppStream (v. 8) libnbd 1.6.0-5.module+el8.8.0+16781+9f4724c2, netcf 0.2.8-12.module+el8.8.0+16781+9f4724c2, hivex 1.3.18-23.module+el8.8.0+16781+9f4724c2, nbdfuse 1.6.0-5.module+el8.8.0+16781+9f4724c2, nbdkit 1.24.0-5.module+el8.8.0+17308+05924798, SLOF 20210217-1.module+el8.8.0+16781+9f4724c2, +104 more
    fixed: vendor fix RHSA-2023:2757
  • Red Hat Enterprise Linux AppStream (v. 9) libtpms 0.9.1-3.20211126git1ff6fe1f43.el9_2
    fixed: vendor fix RHSA-2023:2453
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) libnbd 1.6.0-5.module+el8.6.0+14480+c0a3aa0f, netcf 0.2.8-12.module+el8.6.0+14480+c0a3aa0f, hivex 1.3.18-23.module+el8.6.0+14480+c0a3aa0f, nbdfuse 1.6.0-5.module+el8.6.0+14480+c0a3aa0f, nbdkit 1.24.0-4.module+el8.6.0+14480+c0a3aa0f, SLOF 20210217-1.module+el8.6.0+14480+c0a3aa0f, +104 more
    fixed: vendor fix RHSA-2023:1833
  • Red Hat Enterprise Linux CRB (v. 8) libnbd 1.6.0-5.module+el8.8.0+16781+9f4724c2, netcf 0.2.8-12.module+el8.8.0+16781+9f4724c2, hivex 1.3.18-23.module+el8.8.0+16781+9f4724c2, nbdfuse 1.6.0-5.module+el8.8.0+16781+9f4724c2, SLOF 20210217-1.module+el8.8.0+16781+9f4724c2, libvirt 8.0.0-19.module+el8.8.0+18453+e0bf0d1d, +38 more
    fixed: vendor fix RHSA-2023:2757

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

5.55% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Trusted Computing Group TPM2.0

Classification

Weakness

References

Sources

Fencer Vulns 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.