Vulnerability identifier: #VU66397

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-2588

CWE-ID: CWE-415

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a double free error within the network packet scheduler implementation in the route4_change() function in Linux kernel when removing all references to a route filter before freeing it. A local user can run a specially crafted program to crash the kernel or execute arbitrary code.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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CPE

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links
http://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u
http://www.openwall.com/lists/oss-security/2022/08/09/6
http://www.zerodayinitiative.com/advisories/ZDI-22-1117/

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?