7.8

CVE-2022-34918: canonical ubuntu_linux

Modified
AliasesRHSA-2022:6592UBUNTU-CVE-2022-34918USN-5545-1
Published 04-07-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-34918 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 5.45% chance of exploitation in the next 30 days, higher than 92.7% of scored vulnerabilities. 5 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (Metasploit, 07-02-2022)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
5.45%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits5reference, metasploit

Advisory lineage

Upstream 0 · Downstream 31 · Related 25
DSA-5191-1LSN-0089-1MGASA-2022-0263MGASA-2022-0264OPENSUSE-SU-2022:2549-1OPENSUSE-SU-2024:13704-1

Timeline

  1. 04-07-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

5.45%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 5.50% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

5 found
  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (randorisec.fr)

    Maturity: unknown

Show all 5 exploits
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • MetasploitMetasploitremoteUnverified

    Netfilter nft_set_elem_init Heap Overflow Privilege Escalation

    exploit/linux/local/netfilter_nft_set_elem_init_privesc

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu81 products
  • linux< 4.4.0-230.264 | < 4.15.0-191.202 | < 5.4.0-124.140 | < 5.15.0-43.46
  • linux-aws< 4.4.0-1110.116 | < 4.4.0-1146.161 | < 4.15.0-1139.150 | < 5.4.0-1083.90 | < 5.15.0-1017.21
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Redhat9 products
  • kpatch-patch-5_14_0-70_13_1< 0:1-2.el9_0
  • kpatch-patch-5_14_0-70_13_1-debuginfo< 0:1-2.el9_0
  • kpatch-patch-5_14_0-70_13_1-debugsource< 0:1-2.el9_0
  • kpatch-patch-5_14_0-70_17_1< 0:1-1.el9_0
  • kpatch-patch-5_14_0-70_17_1-debuginfo< 0:1-1.el9_0
Netapp5 products
Debian2 products
Canonical1 product
Linux1 product
  • linux_kernel≥ 4.1, < 4.14.316 | ≥ 4.15, < 4.19.284 | ≥ 4.20, < 5.4.244 | ≥ 5.5, < 5.10.130 | ≥ 5.11, < 5.15.54 | ≥ 5.16, < 5.18.11
Opensuse1 product
  • kernel-source&distro=openSUSE Tumbleweed< 5.18.9-2.1

7 vendors · 100 products

References

34 links
Show all 34 references