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CVE-2023-52881 tcp: do not accept ACK of bytes we never sent

🗓️ 29 May 2024 10:15:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

CVE-2023-52881 tcp vulnerability resolved by not accepting ACK for unsent bytes in Linux kernel

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/tcp_input.c"
    ],
    "versions": [
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "69eae75ca5255e876628ac5cee9eaab31f644b57",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "458f07ffeccd17f99942311e09ef574ddf4a414a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "7ffff0cc929fdfc62a74b384c4903d6496c910f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "b17a886ed29f3b70b78ccf632dad03e0c69e3c1a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "0d4e0afdd6658cd21dd5be61880411a2553fd1fc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "008b807fe487e0b15a3a6c39add4eb477f73e440",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "2087d53a66e97a5eb5d1bf558d5bef9e5f891757",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "354e4aa391ed50a4d827ff6fc11e0667d0859b25",
        "lessThan": "3d501dd326fb1c73f1b8206d4c6e1d7b15c07e27",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d15569e14cfcf9151e9e3b4c0cb98369943a2bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e252bbd8c87b95e9cecdc01350fbb0b46a0f9bf1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2ee4432e82437a7c051c254b065fbf5d4581e1a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3.0.58",
        "lessThan": "3.1",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "3.2.37",
        "lessThan": "3.3",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "3.4.25",
        "lessThan": "3.5",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/tcp_input.c"
    ],
    "versions": [
      {
        "version": "3.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.333",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.302",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.264",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.204",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.143",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.68",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.7",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.7",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 15:27Current
7.3High risk
Vulners AI Score7.3
EPSS0.00227
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