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

2024-04-2813:00:56

Linux

www.cve.org

linux kernel

netfilter

nfnetlink_osf

nf_osf_find

memory leak

security fix

AI Score

5.4

Confidence

High

EPSS

Percentile

15.5%

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

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