GHSA-9V26-H3PH-P8V7

Vulnerability from github – Published: 2022-07-05 00:00 – Updated: 2022-07-14 00:00
VLAI?
Details

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-34918"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-843"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-04T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.",
  "id": "GHSA-9v26-h3ph-p8v7",
  "modified": "2022-07-14T00:00:21Z",
  "published": "2022-07-05T00:00:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34918"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452@randorisec.fr/T/#u"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220826-0004"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5191"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2022/07/02/3"
    },
    {
      "type": "WEB",
      "url": "https://www.randorisec.fr/crack-linux-firewall"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/07/05/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/08/06/5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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