#VU99808 Use-after-free in Linux kernel - CVE-2024-50127

Vulnerability identifier: #VU99808

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-2024-50127

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the taprio_change() function in net/sched/sch_taprio.c. A local user can escalate privileges on the system.

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/999612996df28d81f163dad530d7f8026e03aec6
https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301
https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61
https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f
https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b

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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.