What is CVE-2022-2588?
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.
The record classifies CVE-2022-2588 under weakness class CWE-416. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 1024 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 5.3 — MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H - EPSS (FIRST)
- 5.8% probability of exploitation in the next 30 days, higher than 93.0% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 8.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2024-01-08, last modified 2025-05-22
Is CVE-2022-2588 being exploited?
Weaponised exploit code for CVE-2022-2588 is publicly available. 10 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 36 in the Threadlinqs vulnerability feed.
- Markakd/CVE-2022-2588 (github)
- BassamGraini/CVE-2022-2588 (github)
- veritas501/CVE-2022-2588 (github)
- pirenga/2022-LPE-UAF (github)
- konoha279/2022-LPE-UAF (github)
- LSinus/CacheMeIfYouCan (github)
- ASkyeye/2022-LPE-UAF (github)
- dom4570/CVE-2022-2588 (github)
Affected products and versions
- The Linux Kernel Organization: linux
How to fix CVE-2022-2588
No vendor patch reference has been recorded for CVE-2022-2588 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2022-2588
1 tracked threat in the Threadlinqs corpus references CVE-2022-2588, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on .
Third-party advisory
- ubuntu.com — third party advisory
- ubuntu.com — third party advisory (USN 5562 1)
- ubuntu.com — third party advisory (USN 5582 1)
- ubuntu.com — third party advisory (USN 5564 1)
- ubuntu.com — third party advisory (USN 5566 1)
Issue tracking and product pages
- openwall.com — issue tracking
- cve.mitre.org — issue tracking
- zerodayinitiative.com — issue tracking
- github.com — issue tracking
- lore.kernel.org — issue tracking
Showing 10 of 15 recorded references.