CVE-2024-36929 net: core: reject skb_copy(_expand) for fraglist GSO skbs

2024-05-3015:29:21

Linux

github.com

linux kernel

vulnerability

resolved

skb_gso_fraglist

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.4%

JSON

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

net: core: reject skb_copy(_expand) for fraglist GSO skbs

SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become
invalid. Return NULL if such an skb is passed to skb_copy or
skb_copy_expand, in order to prevent a crash on a potential later
call to skb_gso_segment.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/skbuff.c"
    ],
    "versions": [
      {
        "version": "3a1296a38d0c",
        "lessThan": "faa83a7797f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3a1296a38d0c",
        "lessThan": "c7af99cc2192",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3a1296a38d0c",
        "lessThan": "989bf6fd1e1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3a1296a38d0c",
        "lessThan": "cfe34d86ef97",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3a1296a38d0c",
        "lessThan": "aea5e2669c28",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3a1296a38d0c",
        "lessThan": "d091e579b864",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/skbuff.c"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.217",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.159",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.91",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.31",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.10",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]