CVE-2022-48654 netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()

2024-04-2813:00:56

Linux

github.com

linux kernel

netfilter

nfnetlink_osf

nf_osf_find

memory leak

security vulnerability .

AI Score

6.6

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()

nf_osf_find() incorrectly returns true on mismatch, this leads to
copying uninitialized memory area in nft_osf which can be used to leak
stale kernel stack data to userspace.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "22c7652cdaa8",
        "lessThan": "721ea8ac063d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "22c7652cdaa8",
        "lessThan": "5d75fef3e61e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "22c7652cdaa8",
        "lessThan": "816eab147e5c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "22c7652cdaa8",
        "lessThan": "633c81c04496",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "22c7652cdaa8",
        "lessThan": "559c36c5a8d7",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/netfilter/nfnetlink_osf.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.2",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.4.215",
        "versionType": "custom",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.146",
        "versionType": "custom",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.71",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "5.19.12",
        "versionType": "custom",
        "lessThanOrEqual": "5.19.*"
      },
      {
        "status": "unaffected",
        "version": "6.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/netfilter/nfnetlink_osf.c"
    ],
    "defaultStatus": "affected"
  }
]