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CVE-2026-64208 crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks

🗓️ 24 Jul 2026 15:23:00Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Fixes missing pre-decrypt and pre-verify length checks in krb5 crypto and AF_RXRPC validation for RxGK.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-64208
24 Jul 202615:23
attackerkb
CVE
CVE-2026-64208
24 Jul 202615:23
cve
Debian CVE
CVE-2026-64208
24 Jul 202615:23
debiancve
EUVD
EUVD-2026-48616
24 Jul 202615:23
euvd
NVD
CVE-2026-64208
24 Jul 202616:16
nvd
Positive Technologies
PT-2026-64323
24 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "Documentation/crypto/krb5.rst",
      "crypto/krb5/krb5_api.c",
      "include/crypto/krb5.h",
      "include/trace/events/rxrpc.h",
      "net/rxrpc/rxgk.c"
    ],
    "versions": [
      {
        "version": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
        "lessThan": "585f9f6aef5c4542ac9d6ec45cd7dbc7df9af3ff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
        "lessThan": "9217017f4bce53dddb8d547837f1f707045d64ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a",
        "lessThan": "2b50aceafe6606ea52ed42aadd1b4d44a188aade",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "Documentation/crypto/krb5.rst",
      "crypto/krb5/krb5_api.c",
      "include/crypto/krb5.h",
      "include/trace/events/rxrpc.h",
      "net/rxrpc/rxgk.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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