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

Vulnerability from cvelistv5 – Published: 2026-01-13 15:31 – Updated: 2026-06-11 18:44
VLAI
Title
tpm: Cap the number of PCR banks
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:40 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux 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)
guessed Create a notification for this product.
Linux 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)
guessed Create a notification for this product.
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      "cve": "CVE-2025-71077",
      "id": "CVE-2025-71077",
      "initial_release_date": "2026-01-14T00:25:51Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "553",
      "product_status:known_not_affected": "232",
      "product_status:recommended": "289",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-71077",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-71077.json",
      "version": "34"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-71077\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-10T20:40:49.952084Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-11T17:37:40.807Z\"}}], \"cna\": {\"title\": \"tpm: Cap the number of PCR banks\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"8ceee7288152bc121a6bf92997261838c78bfe06\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"275c686f1e3cc056ec66c764489ec1fe1e51b950\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"ceb70d31da5671d298bad94ae6c20e4bbb800f96\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"d88481653d74d622d1d0d2c9bad845fc2cc6fd23\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"b69492161c056d36789aee42a87a33c18c8ed5e1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"858344bc9210bea9ab2bdc7e9e331ba84c164e50\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bcfff8384f6c4e6627676ef07ccad9cfacd67849\", \"lessThan\": \"faf07e611dfa464b201223a7253e9dc5ee0f3c9e\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/char/tpm/tpm-chip.c\", \"drivers/char/tpm/tpm1-cmd.c\", \"drivers/char/tpm/tpm2-cmd.c\", \"include/linux/tpm.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.248\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.160\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/char/tpm/tpm-chip.c\", \"drivers/char/tpm/tpm1-cmd.c\", \"drivers/char/tpm/tpm2-cmd.c\", \"include/linux/tpm.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8ceee7288152bc121a6bf92997261838c78bfe06\"}, {\"url\": \"https://git.kernel.org/stable/c/275c686f1e3cc056ec66c764489ec1fe1e51b950\"}, {\"url\": \"https://git.kernel.org/stable/c/ceb70d31da5671d298bad94ae6c20e4bbb800f96\"}, {\"url\": \"https://git.kernel.org/stable/c/d88481653d74d622d1d0d2c9bad845fc2cc6fd23\"}, {\"url\": \"https://git.kernel.org/stable/c/b69492161c056d36789aee42a87a33c18c8ed5e1\"}, {\"url\": \"https://git.kernel.org/stable/c/858344bc9210bea9ab2bdc7e9e331ba84c164e50\"}, {\"url\": \"https://git.kernel.org/stable/c/faf07e611dfa464b201223a7253e9dc5ee0f3c9e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.248\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.198\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.160\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.120\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.64\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.3\", \"versionStartIncluding\": \"5.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"5.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:54:17.555Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-71077\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-11T18:44:05.950Z\", \"dateReserved\": \"2026-01-13T15:30:19.648Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-01-13T15:31:29.435Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.