CVE-2022-34918 (GCVE-0-2022-34918)

Vulnerability from cvelistv5 – Published: 2022-07-04 20:07 – Updated: 2024-08-03 09:22
VLAI?
Summary
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 ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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      "references": "[{\"url\": \"http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/07/05/1\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/08/06/5\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20220826-0004/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5191\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.openwall.com/lists/oss-security/2022/07/02/3\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://www.randorisec.fr/crack-linux-firewall/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/07/05/1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/08/06/5\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20220826-0004/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5191\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.openwall.com/lists/oss-security/2022/07/02/3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://www.randorisec.fr/crack-linux-firewall/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-843\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-34918\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2022-07-04T21:15:07.730\",\"lastModified\":\"2024-11-21T07:10:26.080\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado un problema en el kernel de Linux versiones hasta 5.18.9. Un error de confusi\u00f3n de tipos en la funci\u00f3n nft_set_elem_init (conllevando a un desbordamiento del b\u00fafer) podr\u00eda ser usado por un atacante local para escalar privilegios, una vulnerabilidad diferente a la de CVE-2022-32250. (El atacante puede obtener acceso de root, pero debe comenzar con un espacio de nombres de usuario no privilegiado para obtener acceso CAP_NET_ADMIN). Esto puede corregirse en la funci\u00f3n nft_setelem_parse_data en el archivo 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  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.