7.8

CVE-2022-2588: canonical ubuntu_linux Use After Free

Modified
AliasesRHSA-2022:6875RHSA-2022:6978RHSA-2022:7137
Published 08-01-2024Last modified 14-10-2026

Vulnerability summary

CVE-2022-2588 is a high (CVSS 7.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 5.87% chance of exploitation in the next 30 days, higher than 93.2% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 5.3, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
5.87%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 53 · Related 36
DLA-3102-1DLA-3131-1DSA-5207-1LSN-0089-1MGASA-2022-0305MGASA-2022-0308

Timeline

  1. 08-01-2024
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

5.87%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

No change 0.00 pp

From 5.87% 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

1 found
  • githubUnverified

    Cve 2022 2588

    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.

Redhat93 products
  • bpftool< 0:3.10.0-957.99.1.el7 | < 0:3.10.0-1062.76.1.el7
  • bpftool-debuginfo< 0:3.10.0-1062.76.1.el7
  • kernel< 0:3.10.0-693.106.1.el7 | < 0:3.10.0-957.99.1.el7 | < 0:3.10.0-1062.76.1.el7
  • kernel-abi-whitelists< 0:3.10.0-693.106.1.el7 | < 0:3.10.0-957.99.1.el7 | < 0:3.10.0-1062.76.1.el7
  • kernel-bootwrapper< 0:3.10.0-957.99.1.el7 | < 0:3.10.0-1062.76.1.el7
Ubuntu83 products
  • linux< 4.4.0-231.265 | < 4.15.0-191.202 | < 5.4.0-124.140 | < 5.15.0-46.49 | < 3.13.0-191.242
  • linux-aws< 4.4.0-1111.117 | < 4.4.0-1147.162 | < 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)
Canonical1 product
Debian1 product
  • linux< 5.18.16-1
Linux1 product
  • linux_kernel< 4.9.326 | ≥ 4.10, < 4.14.291 | ≥ 4.15, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.137 | ≥ 5.11, < 5.15.61 | ≥ 5.16, < 5.18.18 | ≥ 5.19, < 5.19.2
Opensuse1 product
  • kernel-source&distro=openSUSE Tumbleweed< 5.19.7-1.1
The linux kernel organization1 product

7 vendors · 181 products

References

45 links
Show all 45 references