#VU104778 Integer overflow in Linux kernel - CVE-2022-49320

Vulnerability identifier: #VU104778

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49320

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer overflow within the zynqmp_dma_alloc_chan_resources() function in drivers/dma/xilinx/zynqmp_dma.c. A local user can execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/4838969e4d95d2bd2995d1605b20d3144fcb3e74
https://git.kernel.org/stable/c/7b5488f4721fed6e121e661e165bab06ae2f8675
https://git.kernel.org/stable/c/83960276ffc9bf5570d4106490346b61e61be5f3
https://git.kernel.org/stable/c/90aefae2e3a770a6909d339f5d8a988c0b0ceaf0
https://git.kernel.org/stable/c/95a0ba85c1b51b36e909841c02d205cd223ab753
https://git.kernel.org/stable/c/f9a9f43a62a04ec3183fb0da9226c7706eed0115

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.