CVE-2024-27417 ipv6: fix potential "struct net" leak in inet6_rtm_getaddr()

2024-05-1711:51:07

Linux

www.cve.org

linux kernel

fix

potential

ipv6

struct net

leak

inet6_rtm_getaddr

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.3%

JSON

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

ipv6: fix potential “struct net” leak in inet6_rtm_getaddr()

It seems that if userspace provides a correct IFA_TARGET_NETNSID value
but no IFA_ADDRESS and IFA_LOCAL attributes, inet6_rtm_getaddr()
returns -EINVAL with an elevated “struct net” refcount.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/addrconf.c"
    ],
    "versions": [
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "9d4ffb5b9d87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "810fa7d5e520",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "8a54834c03c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "1b0998fdd857",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "44112bc5c74e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "33a1b6bfef6d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6ecf4c37eb3e",
        "lessThan": "10bfd453da64",
        "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/ipv6/addrconf.c"
    ],
    "versions": [
      {
        "version": "4.20",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.20",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.271",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.212",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.151",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.81",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.21",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.9",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]