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LinuxCVE-2024-26583

HistoryFeb 21, 2024 - 3:15 p.m.

CVE-2024-26583

2024-02-2115:15:09

CWE-362

Linux

web.nvd.nist.gov

614

linux

kernel

vulnerability

tls

fix

race

async

crypto

handler

notification

socket close

data

synchronization

atomic counter

nvd

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:

tls: fix race between async notify and socket close

The submitting thread (one which called recvmsg/sendmsg)
may exit as soon as the async crypto handler calls complete()
so any code past that point risks touching already freed data.

Try to avoid the locking and extra flags altogether.
Have the main thread hold an extra reference, this way
we can depend solely on the atomic ref counter for
synchronization.

Don’t futz with reiniting the completion, either, we are now
tightly controlling when completion fires.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange5.7.0–6.1.79

linuxlinux_kernelRange6.2.0–6.6.18

linuxlinux_kernelRange6.7.0–6.7.6

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/tls.h",
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "0cada33241d9",
        "lessThan": "f17d21ea7391",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cada33241d9",
        "lessThan": "7a3ca06d04d5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cada33241d9",
        "lessThan": "86dc27ee36f5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cada33241d9",
        "lessThan": "6209319b2efd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cada33241d9",
        "lessThan": "aec7961916f3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/tls.h",
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.160",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.79",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.18",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.6",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]