What is CVE-2022-34918?

CVE-2022-34918 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2022-34918 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-34918?

CVE-2022-34918 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-34918?

No patch is currently available for CVE-2022-34918. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-34918 actively exploited?

CVE-2022-34918 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-34918

High

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.

Package Linux Kernel

Published 2022-07-04

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-843

CVE-2022-34918 is classified as CWE-843

See CWE-843 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2022-34918 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html

Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html

Exploit Third Party Advisory VDB Entry
Openwall
http://www.openwall.com/lists/oss-security/2022/07/05/1

Exploit Mailing List Third Party Advisory
Openwall
http://www.openwall.com/lists/oss-security/2022/08/06/5

Mailing List Third Party Advisory
Kernel.org
https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u
Security
https://security.netapp.com/advisory/ntap-20220826-0004/

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5191

Third Party Advisory
Openwall
https://www.openwall.com/lists/oss-security/2022/07/02/3

Exploit Mailing List Third Party Advisory
Randorisec
https://www.randorisec.fr/crack-linux-firewall/

Exploit Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6
Patch

Details

CVE ID CVE-2022-34918

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2022-07-04

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-34918?

CVE-2022-34918 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2022-34918 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-34918?

CVE-2022-34918 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-34918?

No patch is currently available for CVE-2022-34918. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-34918 actively exploited?

No — CVE-2022-34918 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.