Vulnerability-Lookup

FKIE_CVE-2025-71077

Vulnerability from fkie_nvd - Published: 2026-01-13 16:16 - Updated: 2026-03-25 19:00

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: tpm: Cap the number of PCR banks tpm2_get_pcr_allocation() does not cap any upper limit for the number of banks. Cap the limit to eight banks so that out of bounds values coming from external I/O cause on only limited harm.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/275c686f1e3cc056ec66c764489ec1fe1e51b950	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/858344bc9210bea9ab2bdc7e9e331ba84c164e50	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8ceee7288152bc121a6bf92997261838c78bfe06	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b69492161c056d36789aee42a87a33c18c8ed5e1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ceb70d31da5671d298bad94ae6c20e4bbb800f96	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d88481653d74d622d1d0d2c9bad845fc2cc6fd23	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/faf07e611dfa464b201223a7253e9dc5ee0f3c9e	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.1
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Cap the number of PCR banks\n\ntpm2_get_pcr_allocation() does not cap any upper limit for the number of\nbanks. Cap the limit to eight banks so that out of bounds values coming\nfrom external I/O cause on only limited harm."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ntpm: Limitar el n\u00famero de bancos PCR\n\ntpm2_get_pcr_allocation() no establece ning\u00fan l\u00edmite superior para el n\u00famero de bancos. Establecer el l\u00edmite en ocho bancos para que los valores fuera de l\u00edmites provenientes de E/S externa causen solo un da\u00f1o limitado."
    }
  ],
  "id": "CVE-2025-71077",
  "lastModified": "2026-03-25T19:00:14.080",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2026-01-13T16:16:07.200",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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}

CVE-2025-71077 (GCVE-0-2025-71077)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:31 – Updated: 2026-02-09 08:34

Title

tpm: Cap the number of PCR banks

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8ceee7288152bc121…
	https://git.kernel.org/stable/c/275c686f1e3cc056e…
	https://git.kernel.org/stable/c/ceb70d31da5671d29…
	https://git.kernel.org/stable/c/d88481653d74d622d…
	https://git.kernel.org/stable/c/b69492161c056d367…
	https://git.kernel.org/stable/c/858344bc9210bea9a…
	https://git.kernel.org/stable/c/faf07e611dfa464b2…

Impacted products

Vendor

Product

Version

Linux

Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < 8ceee7288152bc121a6bf92997261838c78bfe06 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < 275c686f1e3cc056ec66c764489ec1fe1e51b950 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < ceb70d31da5671d298bad94ae6c20e4bbb800f96 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < d88481653d74d622d1d0d2c9bad845fc2cc6fd23 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < b69492161c056d36789aee42a87a33c18c8ed5e1 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < 858344bc9210bea9ab2bdc7e9e331ba84c164e50 (git)
Affected: bcfff8384f6c4e6627676ef07ccad9cfacd67849 , < faf07e611dfa464b201223a7253e9dc5ee0f3c9e (git)

Linux

Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/tpm-chip.c",
            "drivers/char/tpm/tpm1-cmd.c",
            "drivers/char/tpm/tpm2-cmd.c",
            "include/linux/tpm.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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          ]
        },
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/tpm-chip.c",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.1"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "5.10.248",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.64",
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              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Cap the number of PCR banks\n\ntpm2_get_pcr_allocation() does not cap any upper limit for the number of\nbanks. Cap the limit to eight banks so that out of bounds values coming\nfrom external I/O cause on only limited harm."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:34:28.240Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/faf07e611dfa464b201223a7253e9dc5ee0f3c9e"
        }
      ],
      "title": "tpm: Cap the number of PCR banks",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71077",
    "datePublished": "2026-01-13T15:31:29.435Z",
    "dateReserved": "2026-01-13T15:30:19.648Z",
    "dateUpdated": "2026-02-09T08:34:28.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-71077

CVE-2025-71077 (GCVE-0-2025-71077)

Tags

Sightings

Nomenclature