#VU102036 Use-after-free in Linux kernel - CVE-2024-56675

Vulnerability identifier: #VU102036

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-2024-56675

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 perf_event_detach_bpf_prog() function in kernel/trace/bpf_trace.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/9245459a992d22fe0e92e988f49db1fec82c184a
https://git.kernel.org/stable/c/9b53d2c2a38a1effc341d99be3f99fa7ef17047d
https://git.kernel.org/stable/c/ef1b808e3b7c98612feceedf985c2fbbeb28f956
https://git.kernel.org/stable/c/f9f85df30118f3f4112761e6682fc60ebcce23e5

---

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.