CVE-2022-2588 Information

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.

Reference

https://ubuntu.com/security/notices/USN-5565-1 https://ubuntu.com/security/notices/USN-5562-1 https://www.openwall.com/lists/oss-security/2022/08/09/6 https://ubuntu.com/security/notices/USN-5582-1 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588 https://ubuntu.com/security/notices/USN-5564-1 https://ubuntu.com/security/notices/USN-5566-1 https://www.zerodayinitiative.com/advisories/ZDI-22-1117/ https://ubuntu.com/security/notices/USN-5588-1 https://ubuntu.com/security/notices/USN-5560-1 https://github.com/Markakd/CVE-2022-2588 https://ubuntu.com/security/notices/USN-5567-1 https://ubuntu.com/security/notices/USN-5560-2 https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u https://ubuntu.com/security/notices/USN-5557-1