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ipv6: fix possible UAF in ip6_finish_output2()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6_finish_output2() If skb_expand_head() returns NULL, skb has been freed and associated dst/idev could also have been freed. We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.

Announced Group revision 1
Original source ↗

CVE-2024-44986

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-44986

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ded37d03440d0ab346a8287cc2ba88b8dc90ceb0",
        "lessThan": "ae8512e93f4ce47614ca89defaec1b93e00697b8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2323690eb05865a657709f4d28eb9538ea97bfc2",
        "lessThan": "1504108cb6020df7b1a31c9bb80fd587470aa448",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5796015fa968a3349027a27dcd04c71d95c53ba5",
        "lessThan": "e891b36de161fcd96f12ff83667473e5067b9037",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5796015fa968a3349027a27dcd04c71d95c53ba5",
        "lessThan": "3574d28caf9a09756ae87ad1ea096c6f47b6101e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5796015fa968a3349027a27dcd04c71d95c53ba5",
        "lessThan": "6ab6bf731354a6fdbaa617d1ec194960db61cf3b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5796015fa968a3349027a27dcd04c71d95c53ba5",
        "lessThan": "56efc253196751ece1fc535a5b582be127b0578a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5796015fa968a3349027a27dcd04c71d95c53ba5",
        "lessThan": "da273b377ae0d9bd255281ed3c2adb228321687b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b34c668a867ffdcf8bd8db4a36512572e82b4a15",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.4.137",
        "lessThan": "5.4.289",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.10.55",
        "lessThan": "5.10.233",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.13.7",
        "lessThan": "5.14",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "net/ipv6/ip6_output.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.14",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.289",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.233",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.166",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.107",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.48",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.10.7",
        "versionType": "semver",
        "lessThanOrEqual": "6.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.11",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/ipv6/ip6_output.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-44986

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#3435 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2024-44986 · Revision 1Source updated