CVE-2022-2588

moderate-risk
Published 2024-01-08

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.

Do I need to act?

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54.4% chance of exploitation in next 30 days
EPSS score — higher than 46% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
LOCAL / HIGH complexity

Affected Products (6)

Affected Vendors

Linux Canonical

References (30)

Third Party Advisory https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
Exploit https://github.com/Markakd/CVE-2022-2588
Mailing List https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/...
Third Party Advisory https://ubuntu.com/security/notices/USN-5557-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5560-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5560-2
Third Party Advisory https://ubuntu.com/security/notices/USN-5562-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5564-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5565-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5566-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5567-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5582-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5588-1
Mailing List https://www.openwall.com/lists/oss-security/2022/08/09/6
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-1117/
Third Party Advisory https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
Exploit https://github.com/Markakd/CVE-2022-2588
Mailing List https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/...
Third Party Advisory https://ubuntu.com/security/notices/USN-5557-1
Third Party Advisory https://ubuntu.com/security/notices/USN-5560-1
and 10 more references
45
/ 100
moderate-risk
Severity 14/34 · Moderate
Exploitability 18/34 · Moderate
Exposure 13/34 · Low