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Fencer Vulns
medium 5.0

CVE-2023-25000 json

Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations

published 2023-03-30 3 y ago modified 2026-09-10 1 mo ago also BIT-vault-2023-25000 , EUVD-2023-1119 , GHSA-vq4h-9ghm-qmrr , GO-2023-1709

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.

Patch / fix

  • go github.com/hashicorp/vault 1.11.9, 1.12.5, 1.13.1
  • bitnami vault 1.11.9, 1.12.5, 1.13.1
  • HashiCorp Vault 1.11.0, 1.11.9, 1.12.5, 1.13.1
  • HashiCorp Vault Enterprise 1.11.0, 1.11.9, 1.12.5, 1.13.1

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-2023-25000 updated cvss 5.0

hashicorp/vault: Cache-Timing Attacks During Seal and Unseal Operations

  • Red Hat Openshift Container Storage 4 ocs4/cephcsi-rhel8, ocs4/mcg-rhel8-operator, ocs4/ocs-rhel8-operator, ocs4/rook-ceph-rhel8-operator
    affected: no fix planned “Out of support scope”
  • Red Hat Openshift Data Foundation 4 odf4/mcg-rhel9-operator, odf4/odf-multicluster-rhel9-operator
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4.13 openshift4/ose-installer v4.13.0-202305091542.p0.g44db7b2.assembly.stream
    fixed: vendor fix RHSA-2023:1326
  • Red Hat OpenShift Container Platform 4.14 openshift4/ose-installer v4.14.0-202310201027.p0.g03546e5.assembly.stream
    fixed: vendor fix RHSA-2023:5006
  • Red Hat RHODF 4.13 for RHEL 9 odf4/odf-rhel9-operator v4.13.0-24, odf4/rook-ceph-rhel9-operator v4.13.0-70
    fixed: vendor fix RHSA-2023:3742
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel8 Red Hat OpenShift Container Platform 4 openshift4/topology-aware-lifecycle-manager-rhel8-operator Red Hat OpenShift Container Platform 4.13 openshift4/ose-cli v4.13.0-202304190216.p0.g92b1a3d.assembly.stream, openshift4/ose-pod v4.13.0-202304211155.p0.gb404935.assembly.stream, openshift4/ose-etcd v4.13.0-202304190216.p0.gf70da9d.assembly.stream, openshift4/ose-tests v4.13.0-202305031828.p0.g893ae57.assembly.stream, openshift4/ose-console v4.13.0-202305031828.p0.ga551d28.assembly.stream, openshift4/ose-coredns v4.13.0-202304190216.p0.g5560e4a.assembly.stream, +174 more Red Hat OpenShift Container Platform 4.14 rhcos 414.92.202310210434-0, openshift4/ose-cli v4.14.0-202310201027.p0.g0c63f9d.assembly.stream, openshift4/ose-pod v4.14.0-202310210404.p0.gf67aeb3.assembly.stream, openshift4/ose-tests v4.14.0-202310201027.p0.g948001a.assembly.stream, openshift4/ose-console v4.14.0-202310201027.p0.gc16ab01.assembly.stream, openshift4/ose-coredns v4.14.0-202310201027.p0.gfd70cf1.assembly.stream, +180 more Red Hat Openshift Data Foundation 4 odf4/cephcsi-rhel9, odf4/ocs-rhel9-operator, odf4/odr-rhel9-operator Red Hat RHODF 4.13 for RHEL 9 odf4/cephcsi-rhel9 v4.13.0-35, odf4/mcg-cli-rhel9 v4.13.0-17, odf4/mcg-core-rhel9 v4.13.0-41, odf4/odf-console-rhel9 v4.13.0-85, odf4/mcg-rhel9-operator v4.13.0-41, odf4/ocs-rhel9-operator v4.13.0-67, +16 more
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
GitHub 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/vault
<1.11.9
>=1.12.0, <1.12.5
>=1.13.0, <1.13.1
1.11.9
1.12.5
1.13.1
bitnami vault
<1.11.9
>=1.12.0, <1.12.5
>=1.13.0, <1.13.1
1.11.9
1.12.5
1.13.1

Affected products

  • HashiCorp Vault
  • HashiCorp Vault Enterprise

Classification

Weakness
  • CWE-208 Observable Timing Discrepancy
  • CWE-203 Observable Discrepancy

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.