#VU104236 Memory leak in Linux kernel - CVE-2022-49263

Vulnerability identifier: #VU104236

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49263

CWE-ID: CWE-401

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 perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the brcmf_pcie_setup() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c. A local user can perform a denial of service (DoS) attack.

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/0347bdfdb1529994ac3a4cb425087c477a74eb2c
https://git.kernel.org/stable/c/4e0b507597e1a86e9b4c056ab274c427223cf8ea
https://git.kernel.org/stable/c/5e90f0f3ead014867dade7a22f93958119f5efab
https://git.kernel.org/stable/c/a88337a06966f2d733ad9a97714b874469133f14
https://git.kernel.org/stable/c/d0ab87f8dcdfe72dc1d763be3392c1fc51a1ace2
https://git.kernel.org/stable/c/f3820ddaf4f3ac80c7401ccc6a42e663c9317f31

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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.